1122210021100 has 72 divisors (see below), whose sum is σ = 2824619490560. Its totient is φ = 379015053120.

The previous prime is 1122210021083. The next prime is 1122210021103. The reversal of 1122210021100 is 11200122211.

It is not an unprimeable number, because it can be changed into a prime (1122210021103) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 11916960 + ... + 12010759.

Almost surely, 2^{1122210021100} is an apocalyptic number.

1122210021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122210021100 is an abundant number, since it is smaller than the sum of its proper divisors (1702409469460).

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

1122210021100 is a wasteful number, since it uses less digits than its factorization.

1122210021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23927807 (or 23927800 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1122210021100 its reverse (11200122211), we get a palindrome (1133410143311).

The spelling of 1122210021100 in words is "one trillion, one hundred twenty-two billion, two hundred ten million, twenty-one thousand, one hundred".