220200012121100 has 72 divisors (see below), whose sum is σ = 521282251425600. Its totient is φ = 80071384801600.

The previous prime is 220200012121091. The next prime is 220200012121157. The reversal of 220200012121100 is 1121210002022.

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, 64939571 + ... + 68246229.

It is an arithmetic number, because the mean of its divisors is an integer number (7240031269800).

Almost surely, 2^{220200012121100} is an apocalyptic number.

220200012121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220200012121100 is an abundant number, since it is smaller than the sum of its proper divisors (301082239304500).

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

220200012121100 is a wasteful number, since it uses less digits than its factorization.

220200012121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367223 (or 3367216 counting only the distinct ones).

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

Adding to 220200012121100 its reverse (1121210002022), we get a palindrome (221321222123122).

The spelling of 220200012121100 in words is "two hundred twenty trillion, two hundred billion, twelve million, one hundred twenty-one thousand, one hundred".