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120112201221 = 3123733323579
BaseRepresentation
bin110111111011100111…
…1101011111000000101
3102111000211022000122020
41233313033223320011
53431442210414341
6131102341153353
711451330602445
oct1576717537005
9374024260566
10120112201221
1146a3722a601
121b3413bb859
13b43251061c
145b561d2125
1531cec6a566
hex1bf73ebe05

120112201221 has 8 divisors (see below), whose sum is σ = 160151390880. Its totient is φ = 80073906192.

The previous prime is 120112201211. The next prime is 120112201243. The reversal of 120112201221 is 122102211021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120112201221 - 29 = 120112200709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120112201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112201211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209410 + ... + 532988.

It is an arithmetic number, because the mean of its divisors is an integer number (20018923860).

Almost surely, 2120112201221 is an apocalyptic number.

It is an amenable number.

120112201221 is a deficient number, since it is larger than the sum of its proper divisors (40039189659).

120112201221 is a wasteful number, since it uses less digits than its factorization.

120112201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447315.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120112201221 its reverse (122102211021), we get a palindrome (242214412242).

The spelling of 120112201221 in words is "one hundred twenty billion, one hundred twelve million, two hundred one thousand, two hundred twenty-one".

Divisors: 1 3 123733 323579 371199 970737 40037400407 120112201221