213142234042422 has 144 divisors (see below), whose sum is σ = 486983857507056. Its totient is φ = 69869503065600.

The previous prime is 213142234042421. The next prime is 213142234042429. The reversal of 213142234042422 is 224240432241312.

213142234042422 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 4 + 2 + 2 + 3 + 404 + 242 + 2 = 666.

It is a super-2 number, since 2×213142234042422² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213142234042421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15698765698 + ... + 15698779274.

It is an arithmetic number, because the mean of its divisors is an integer number (3381832343799).

Almost surely, 2^{213142234042422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213142234042422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243491928753528).

213142234042422 is an abundant number, since it is smaller than the sum of its proper divisors (273841623464634).

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

213142234042422 is an equidigital number, since it uses as much as digits as its factorization.

213142234042422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22397 (or 22324 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 213142234042422 its reverse (224240432241312), we get a palindrome (437382666283734).

The spelling of 213142234042422 in words is "two hundred thirteen trillion, one hundred forty-two billion, two hundred thirty-four million, forty-two thousand, four hundred twenty-two".