13121010322112 has 56 divisors (see below), whose sum is σ = 32461720354560. Its totient is φ = 5112081941760.

The previous prime is 13121010322051. The next prime is 13121010322139. The reversal of 13121010322112 is 21122301012131.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×13121010322112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331266412 + ... + 1331276267.

It is an arithmetic number, because the mean of its divisors is an integer number (579673577760).

Almost surely, 2^{13121010322112} is an apocalyptic number.

It is an amenable number.

13121010322112 is an abundant number, since it is smaller than the sum of its proper divisors (19340710032448).

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

13121010322112 is a wasteful number, since it uses less digits than its factorization.

13121010322112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662542709 (or 2662542699 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121010322112 its reverse (21122301012131), we get a palindrome (34243311334243).

The spelling of 13121010322112 in words is "thirteen trillion, one hundred twenty-one billion, ten million, three hundred twenty-two thousand, one hundred twelve".