12121012331120 has 160 divisors (see below), whose sum is σ = 37201970635776. Its totient is φ = 3555743846400.

The previous prime is 12121012331119. The next prime is 12121012331167. The reversal of 12121012331120 is 2113321012121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12121012331092 and 12121012331101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57768716 + ... + 57978155.

Almost surely, 2^{12121012331120} is an apocalyptic number.

12121012331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121012331120 is an abundant number, since it is smaller than the sum of its proper divisors (25080958304656).

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

12121012331120 is a wasteful number, since it uses less digits than its factorization.

12121012331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115746919 (or 115746913 counting only the distinct ones).

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

Adding to 12121012331120 its reverse (2113321012121), we get a palindrome (14234333343241).

The spelling of 12121012331120 in words is "twelve trillion, one hundred twenty-one billion, twelve million, three hundred thirty-one thousand, one hundred twenty".