121012021132112 has 160 divisors (see below), whose sum is σ = 265814680057344. Its totient is φ = 52887586752000.

The previous prime is 121012021132003. The next prime is 121012021132139. The reversal of 121012021132112 is 211231120210121.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 735656018 + ... + 735820494.

Almost surely, 2^{121012021132112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121012021132112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132907340028672).

121012021132112 is an abundant number, since it is smaller than the sum of its proper divisors (144802658925232).

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

121012021132112 is a wasteful number, since it uses less digits than its factorization.

121012021132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166057 (or 166051 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121012021132112 its reverse (211231120210121), we get a palindrome (332243141342233).

The spelling of 121012021132112 in words is "one hundred twenty-one trillion, twelve billion, twenty-one million, one hundred thirty-two thousand, one hundred twelve".