202131332220 has 24 divisors (see below), whose sum is σ = 565967730384. Its totient is φ = 53901688576.

The previous prime is 202131332209. The next prime is 202131332243. The reversal of 202131332220 is 22233131202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684427709 + ... + 1684427828.

It is an arithmetic number, because the mean of its divisors is an integer number (23581988766).

Almost surely, 2^202131332220 is an apocalyptic number.

202131332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202131332220 is an abundant number, since it is smaller than the sum of its proper divisors (363836398164).

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

202131332220 is a wasteful number, since it uses less digits than its factorization.

202131332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368855549 (or 3368855547 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 202131332220 its reverse (22233131202), we get a palindrome (224364463422).

The spelling of 202131332220 in words is "two hundred two billion, one hundred thirty-one million, three hundred thirty-two thousand, two hundred twenty".