220102010012100 has 144 divisors (see below), whose sum is σ = 675138130505216. Its totient is φ = 55265369472000.

The previous prime is 220102010012039. The next prime is 220102010012111. The reversal of 220102010012100 is 1210010201022.

It is a super-2 number, since 2×220102010012100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319478641 + ... + 320166840.

Almost surely, 2^{220102010012100} is an apocalyptic number.

220102010012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102010012100 is an abundant number, since it is smaller than the sum of its proper divisors (455036120493116).

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

220102010012100 is a wasteful number, since it uses less digits than its factorization.

220102010012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639645566 (or 639645559 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220102010012100 its reverse (1210010201022), we get a palindrome (221312020213122).

The spelling of 220102010012100 in words is "two hundred twenty trillion, one hundred two billion, ten million, twelve thousand, one hundred".