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120211111122 = 23173115810319
BaseRepresentation
bin110111111110100100…
…0111111110011010010
3102111021201102011111220
41233331020333303102
53432143021023442
6131120233145510
711453641404504
oct1577510776322
9374251364456
10120211111122
1146a88047023
121b36a55b296
13b449b61bab
145b653bbd74
1531d87a6eec
hex1bfd23fcd2

120211111122 has 16 divisors (see below), whose sum is σ = 241811948160. Its totient is φ = 39838749392.

The previous prime is 120211111117. The next prime is 120211111129. The reversal of 120211111122 is 221111112021.

It is a happy number.

It is a super-2 number, since 2×1202111111222 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120211111129) 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, 57904122 + ... + 57906197.

It is an arithmetic number, because the mean of its divisors is an integer number (15113246760).

Almost surely, 2120211111122 is an apocalyptic number.

120211111122 is an abundant number, since it is smaller than the sum of its proper divisors (121600837038).

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

120211111122 is a wasteful number, since it uses less digits than its factorization.

120211111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115810497.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120211111122 its reverse (221111112021), we get a palindrome (341322223143).

The spelling of 120211111122 in words is "one hundred twenty billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 173 346 519 1038 115810319 231620638 347430957 694861914 20035185187 40070370374 60105555561 120211111122