20012200112200 has 48 divisors (see below), whose sum is σ = 46537131784500. Its totient is φ = 8003371825920.

The previous prime is 20012200112161. The next prime is 20012200112279. The reversal of 20012200112200 is 221100221002.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3717947527204 + 16294252584996 = 1928198^2 + 4036614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8361915 + ... + 10485514.

Almost surely, 2^{20012200112200} is an apocalyptic number.

20012200112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012200112200 is an abundant number, since it is smaller than the sum of its proper divisors (26524931672300).

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

20012200112200 is a wasteful number, since it uses less digits than its factorization.

20012200112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18852754 (or 18852745 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012200112200 its reverse (221100221002), we get a palindrome (20233300333202).

The spelling of 20012200112200 in words is "twenty trillion, twelve billion, two hundred million, one hundred twelve thousand, two hundred".