213013012422 has 32 divisors (see below), whose sum is σ = 487699776000. Its totient is φ = 60759249408.

The previous prime is 213013012403. The next prime is 213013012423. The reversal of 213013012422 is 224210310312.

213013012422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213013012422² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013012423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4208347 + ... + 4258662.

It is an arithmetic number, because the mean of its divisors is an integer number (15240618000).

Almost surely, 2^213013012422 is an apocalyptic number.

213013012422 is an abundant number, since it is smaller than the sum of its proper divisors (274686763578).

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

213013012422 is a wasteful number, since it uses less digits than its factorization.

213013012422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467620.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213013012422 its reverse (224210310312), we get a palindrome (437223322734).

The spelling of 213013012422 in words is "two hundred thirteen billion, thirteen million, twelve thousand, four hundred twenty-two".