213022120 has 16 divisors (see below), whose sum is σ = 479299860. Its totient is φ = 85208832.

The previous prime is 213022097. The next prime is 213022163. The reversal of 213022120 is 21220312.

213022120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 206841924 + 6180196 = 14382^2 + 2486^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213022120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662737 + ... + 2662816.

Almost surely, 2^213022120 is an apocalyptic number.

213022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213022120 is an abundant number, since it is smaller than the sum of its proper divisors (266277740).

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

213022120 is a wasteful number, since it uses less digits than its factorization.

213022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325564 (or 5325560 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 213022120 is about 14595.2773183657. The cubic root of 213022120 is about 597.2299346143.

Adding to 213022120 its reverse (21220312), we get a palindrome (234242432).

The spelling of 213022120 in words is "two hundred thirteen million, twenty-two thousand, one hundred twenty".