20332212100 has 18 divisors (see below), whose sum is σ = 44120900474. Its totient is φ = 8132884800.

The previous prime is 20332212077. The next prime is 20332212107. The reversal of 20332212100 is 121223302.

It can be written as a sum of positive squares in 3 ways, for example, as 31091776 + 20301120324 = 5576^2 + 142482^2 .

It is not an unprimeable number, because it can be changed into a prime (20332212107) 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, 101660961 + ... + 101661160.

Almost surely, 2^20332212100 is an apocalyptic number.

20332212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332212100 is an abundant number, since it is smaller than the sum of its proper divisors (23788688374).

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

20332212100 is a wasteful number, since it uses less digits than its factorization.

20332212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203322135 (or 203322128 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20332212100 its reverse (121223302), we get a palindrome (20453435402).

The spelling of 20332212100 in words is "twenty billion, three hundred thirty-two million, two hundred twelve thousand, one hundred".