121012020120112 has 20 divisors (see below), whose sum is σ = 255775406163336. Its totient is φ = 55005463690880.

The previous prime is 121012020120083. The next prime is 121012020120133. The reversal of 121012020120112 is 211021020210121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343784147893 + ... + 343784148244.

Almost surely, 2^{121012020120112} is an apocalyptic number.

It is an amenable number.

121012020120112 is an abundant number, since it is smaller than the sum of its proper divisors (134763386043224).

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

121012020120112 is a wasteful number, since it uses less digits than its factorization.

121012020120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687568296156 (or 687568296150 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012020120112 its reverse (211021020210121), we get a palindrome (332033040330233).

Subtracting 121012020120112 from its reverse (211021020210121), we obtain a palindrome (90009000090009).

The spelling of 121012020120112 in words is "one hundred twenty-one trillion, twelve billion, twenty million, one hundred twenty thousand, one hundred twelve".