20112132200 has 96 divisors (see below), whose sum is σ = 51218875800. Its totient is φ = 7310499840.

The previous prime is 20112132199. The next prime is 20112132211. The reversal of 20112132200 is 223121102.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 9349729636 + 10762402564 = 96694^2 + 103742^2 .

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, 3389 + ... + 200588.

Almost surely, 2^20112132200 is an apocalyptic number.

20112132200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112132200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25609437900).

20112132200 is an abundant number, since it is smaller than the sum of its proper divisors (31106743600).

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

20112132200 is a wasteful number, since it uses less digits than its factorization.

20112132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204039 (or 204030 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20112132200 its reverse (223121102), we get a palindrome (20335253302).

The spelling of 20112132200 in words is "twenty billion, one hundred twelve million, one hundred thirty-two thousand, two hundred".