121102112012 has 24 divisors (see below), whose sum is σ = 244602291360. Its totient is φ = 51387033600.

The previous prime is 121102111987. The next prime is 121102112023. The reversal of 121102112012 is 210211201121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21408437 + ... + 21414092.

It is an arithmetic number, because the mean of its divisors is an integer number (10191762140).

Almost surely, 2^121102112012 is an apocalyptic number.

It is an amenable number.

121102112012 is an abundant number, since it is smaller than the sum of its proper divisors (123500179348).

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

121102112012 is a wasteful number, since it uses less digits than its factorization.

121102112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42822641 (or 42822639 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121102112012 its reverse (210211201121), we get a palindrome (331313313133).

The spelling of 121102112012 in words is "one hundred twenty-one billion, one hundred two million, one hundred twelve thousand, twelve".