2120102220120 has 64 divisors (see below), whose sum is σ = 6361221565440. Its totient is φ = 565279267200.

The previous prime is 2120102220113. The next prime is 2120102220139. The reversal of 2120102220120 is 210222010212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2120102220120.

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 15 ways as a sum of consecutive naturals, for example, 430696 + ... + 2103735.

It is an arithmetic number, because the mean of its divisors is an integer number (99394086960).

Almost surely, 2^{2120102220120} is an apocalyptic number.

2120102220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120102220120 is an abundant number, since it is smaller than the sum of its proper divisors (4241119345320).

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

2120102220120 is a wasteful number, since it uses less digits than its factorization.

2120102220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541416 (or 2541412 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2120102220120 its reverse (210222010212), we get a palindrome (2330324230332).

The spelling of 2120102220120 in words is "two trillion, one hundred twenty billion, one hundred two million, two hundred twenty thousand, one hundred twenty".