2102102221100 has 72 divisors (see below), whose sum is σ = 5213513480448. Its totient is φ = 720679291200.

The previous prime is 2102102221073. The next prime is 2102102221147. The reversal of 2102102221100 is 11222012012.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 13645505 + ... + 13798695.

Almost surely, 2^{2102102221100} is an apocalyptic number.

2102102221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102102221100 is an abundant number, since it is smaller than the sum of its proper divisors (3111411259348).

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

2102102221100 is a wasteful number, since it uses less digits than its factorization.

2102102221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172815 (or 172808 counting only the distinct ones).

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

Adding to 2102102221100 its reverse (11222012012), we get a palindrome (2113324233112).

The spelling of 2102102221100 in words is "two trillion, one hundred two billion, one hundred two million, two hundred twenty-one thousand, one hundred".