2120102221100 has 72 divisors (see below), whose sum is σ = 4733837358768. Its totient is φ = 823801888000.

The previous prime is 2120102221087. The next prime is 2120102221141. The reversal of 2120102221100 is 11222010212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1444994 + ... + 2515593.

It is an arithmetic number, because the mean of its divisors is an integer number (65747741094).

Almost surely, 2^{2120102221100} is an apocalyptic number.

2120102221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120102221100 is an abundant number, since it is smaller than the sum of its proper divisors (2613735137668).

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

2120102221100 is a wasteful number, since it uses less digits than its factorization.

2120102221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960755 (or 3960748 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2120102221100 its reverse (11222010212), we get a palindrome (2131324231312).

The spelling of 2120102221100 in words is "two trillion, one hundred twenty billion, one hundred two million, two hundred twenty-one thousand, one hundred".