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121313232222 = 23713376005011
BaseRepresentation
bin111000011111011010…
…1010000010101011110
3102121010112020201102220
41300332311100111132
53441422141412342
6131421443330210
711523153313530
oct1607665202536
9377115221386
10121313232222
11474a317aa06
121b617680966
13b5942a6160
145c2b90d850
15325040b5ec
hex1c3ed5055e

121313232222 has 64 divisors (see below), whose sum is σ = 306687972864. Its totient is φ = 31129971840.

The previous prime is 121313232193. The next prime is 121313232223. The reversal of 121313232222 is 222232313121.

121313232222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121313232192 and 121313232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313232223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2982304 + ... + 3022707.

It is an arithmetic number, because the mean of its divisors is an integer number (4791999576).

Almost surely, 2121313232222 is an apocalyptic number.

121313232222 is an abundant number, since it is smaller than the sum of its proper divisors (185374740642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121313232222 is a wasteful number, since it uses less digits than its factorization.

121313232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005073.

The product of its digits is 1728, while the sum is 24.

Adding to 121313232222 its reverse (222232313121), we get a palindrome (343545545343).

The spelling of 121313232222 in words is "one hundred twenty-one billion, three hundred thirteen million, two hundred thirty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 13 14 21 26 37 39 42 74 78 91 111 182 222 259 273 481 518 546 777 962 1443 1554 2886 3367 6734 10101 20202 6005011 12010022 18015033 36030066 42035077 78065143 84070154 126105231 156130286 222185407 234195429 252210462 444370814 468390858 546456001 666556221 1092912002 1333112442 1555297849 1639368003 2888410291 3110595698 3278736006 4665893547 5776820582 8665230873 9331787094 17330461746 20218872037 40437744074 60656616111 121313232222