20112104200 has 72 divisors (see below), whose sum is σ = 49351436730. Its totient is φ = 7621401600.

The previous prime is 20112104189. The next prime is 20112104213. The reversal of 20112104200 is 240121102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16021990084 + 4090114116 = 126578^2 + 63954^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 67081 + ... + 211480.

Almost surely, 2^20112104200 is an apocalyptic number.

20112104200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112104200 is an abundant number, since it is smaller than the sum of its proper divisors (29239332530).

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

20112104200 is a wasteful number, since it uses less digits than its factorization.

20112104200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278615 (or 278587 counting only the distinct ones).

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

Adding to 20112104200 its reverse (240121102), we get a palindrome (20352225302).

The spelling of 20112104200 in words is "twenty billion, one hundred twelve million, one hundred four thousand, two hundred".