213425212 has 96 divisors (see below), whose sum is σ = 506225664. Its totient is φ = 76032000.

The previous prime is 213425207. The next prime is 213425231. The reversal of 213425212 is 212524312.

It is a happy number.

213425212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213425212² = 91100642234489888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 604428 + ... + 604780.

It is an arithmetic number, because the mean of its divisors is an integer number (5273184).

Almost surely, 2^213425212 is an apocalyptic number.

213425212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213425212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253112832).

213425212 is an abundant number, since it is smaller than the sum of its proper divisors (292800452).

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

213425212 is a wasteful number, since it uses less digits than its factorization.

213425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 213425212 is about 14609.0797793701. The cubic root of 213425212 is about 597.6064008736.

Adding to 213425212 its reverse (212524312), we get a palindrome (425949524).

The spelling of 213425212 in words is "two hundred thirteen million, four hundred twenty-five thousand, two hundred twelve".