213130222020 has 72 divisors (see below), whose sum is σ = 646797854976. Its totient is φ = 56808101952.

The previous prime is 213130222007. The next prime is 213130222061. The reversal of 213130222020 is 20222031312.

213130222020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213130221984 and 213130222002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109479 + ... + 662001.

Almost surely, 2^213130222020 is an apocalyptic number.

213130222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213130222020 is an abundant number, since it is smaller than the sum of its proper divisors (433667632956).

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

213130222020 is a wasteful number, since it uses less digits than its factorization.

213130222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554681 (or 554676 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 213130222020 its reverse (20222031312), we get a palindrome (233352253332).

The spelling of 213130222020 in words is "two hundred thirteen billion, one hundred thirty million, two hundred twenty-two thousand, twenty".