120121102111120 has 160 divisors (see below), whose sum is σ = 312131565051264. Its totient is φ = 42610959667200.

The previous prime is 120121102111099. The next prime is 120121102111147. The reversal of 120121102111120 is 21111201121021.

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

It is a junction number, because it is equal to n+sod(n) for n = 120121102111094 and 120121102111103.

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, 391422859 + ... + 391729621.

Almost surely, 2^{120121102111120} is an apocalyptic number.

120121102111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120121102111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156065782525632).

120121102111120 is an abundant number, since it is smaller than the sum of its proper divisors (192010462940144).

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

120121102111120 is a wasteful number, since it uses less digits than its factorization.

120121102111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317681 (or 317675 counting only the distinct ones).

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

Adding to 120121102111120 its reverse (21111201121021), we get a palindrome (141232303232141).

Subtracting from 120121102111120 its reverse (21111201121021), we obtain a palindrome (99009900990099).

The spelling of 120121102111120 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand, one hundred twenty".