222021220022100 has 108 divisors (see below), whose sum is σ = 726170274482016. Its totient is φ = 56631499594560.

The previous prime is 222021220022083. The next prime is 222021220022197. The reversal of 222021220022100 is 1220022120222.

222021220022100 is a `hidden beast` number, since 2 + 220 + 2 + 1 + 220 + 0 + 221 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5362810702 + ... + 5362852101.

Almost surely, 2^{222021220022100} is an apocalyptic number.

222021220022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021220022100 is an abundant number, since it is smaller than the sum of its proper divisors (504149054459916).

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

222021220022100 is a wasteful number, since it uses less digits than its factorization.

222021220022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725662846 (or 10725662836 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222021220022100 its reverse (1220022120222), we get a palindrome (223241242142322).

The spelling of 222021220022100 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty million, twenty-two thousand, one hundred".