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122000011220 = 2256100000561
BaseRepresentation
bin111000110011111000…
…1000110111111010100
3102122220101112201010002
41301213301012333110
53444324000324340
6132013535350432
711546162661623
oct1614761067724
9378811481102
10122000011220
114781590a15a
121b789682418
13b673666869
145c94c056ba
15329086b715
hex1c67c46fd4

122000011220 has 12 divisors (see below), whose sum is σ = 256200023604. Its totient is φ = 48800004480.

The previous prime is 122000011219. The next prime is 122000011229. The reversal of 122000011220 is 22110000221.

It is a happy number.

122000011220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87002581444 + 34997429776 = 294962^2 + 187076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000011229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050000261 + ... + 3050000300.

It is an arithmetic number, because the mean of its divisors is an integer number (21350001967).

Almost surely, 2122000011220 is an apocalyptic number.

122000011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122000011220 is an abundant number, since it is smaller than the sum of its proper divisors (134200012384).

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

122000011220 is a wasteful number, since it uses less digits than its factorization.

122000011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100000570 (or 6100000568 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122000011220 its reverse (22110000221), we get a palindrome (144110011441).

The spelling of 122000011220 in words is "one hundred twenty-two billion, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6100000561 12200001122 24400002244 30500002805 61000005610 122000011220