121010120112 has 80 divisors (see below), whose sum is σ = 364559206400. Its totient is φ = 34574315328.

The previous prime is 121010120083. The next prime is 121010120173. The reversal of 121010120112 is 211021010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3658528 + ... + 3691455.

It is an arithmetic number, because the mean of its divisors is an integer number (4556990080).

Almost surely, 2^121010120112 is an apocalyptic number.

121010120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010120112 is an abundant number, since it is smaller than the sum of its proper divisors (243549086288).

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

121010120112 is an equidigital number, since it uses as much as digits as its factorization.

121010120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350015 (or 7349995 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010120112 its reverse (211021010121), we get a palindrome (332031130233).

The spelling of 121010120112 in words is "one hundred twenty-one billion, ten million, one hundred twenty thousand, one hundred twelve".