213130332220 has 48 divisors (see below), whose sum is σ = 483147590688. Its totient is φ = 78507313920.

The previous prime is 213130332211. The next prime is 213130332299. The reversal of 213130332220 is 22233031312.

It is a junction number, because it is equal to n+sod(n) for n = 213130332191 and 213130332200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864094 + ... + 1083013.

It is an arithmetic number, because the mean of its divisors is an integer number (10065574806).

Almost surely, 2^213130332220 is an apocalyptic number.

213130332220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213130332220 is an abundant number, since it is smaller than the sum of its proper divisors (270017258468).

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

213130332220 is a wasteful number, since it uses less digits than its factorization.

213130332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947550 (or 1947548 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213130332220 its reverse (22233031312), we get a palindrome (235363363532).

The spelling of 213130332220 in words is "two hundred thirteen billion, one hundred thirty million, three hundred thirty-two thousand, two hundred twenty".