20110112200 has 24 divisors (see below), whose sum is σ = 46756011330. Its totient is φ = 8044044800.

The previous prime is 20110112153. The next prime is 20110112227. The reversal of 20110112200 is 221101102.

It can be written as a sum of positive squares in 3 ways, for example, as 7265516644 + 12844595556 = 85238^2 + 113334^2 .

It is a super-2 number, since 2×20110112200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50275081 + ... + 50275480.

Almost surely, 2^20110112200 is an apocalyptic number.

20110112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110112200 is an abundant number, since it is smaller than the sum of its proper divisors (26645899130).

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

20110112200 is a wasteful number, since it uses less digits than its factorization.

20110112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100550577 (or 100550568 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20110112200 its reverse (221101102), we get a palindrome (20331213302).

The spelling of 20110112200 in words is "twenty billion, one hundred ten million, one hundred twelve thousand, two hundred".