20112122200 has 24 divisors (see below), whose sum is σ = 46760684580. Its totient is φ = 8044848800.

The previous prime is 20112122197. The next prime is 20112122203. The reversal of 20112122200 is 222121102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20112122197) and next prime (20112122203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112122203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50280106 + ... + 50280505.

Almost surely, 2^20112122200 is an apocalyptic number.

20112122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112122200 is an abundant number, since it is smaller than the sum of its proper divisors (26648562380).

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

20112122200 is a wasteful number, since it uses less digits than its factorization.

20112122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100560627 (or 100560618 counting only the distinct ones).

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

Adding to 20112122200 its reverse (222121102), we get a palindrome (20334243302).

The spelling of 20112122200 in words is "twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred".