213131222222 has 8 divisors (see below), whose sum is σ = 320059715472. Its totient is φ = 106444650400.

The previous prime is 213131222207. The next prime is 213131222281. The reversal of 213131222222 is 222222131312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 60478154 + ... + 60481677.

It is an arithmetic number, because the mean of its divisors is an integer number (40007464434).

Almost surely, 2^213131222222 is an apocalyptic number.

213131222222 is a deficient number, since it is larger than the sum of its proper divisors (106928493250).

213131222222 is a wasteful number, since it uses less digits than its factorization.

213131222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120960714.

The product of its digits is 1152, while the sum is 23.

Adding to 213131222222 its reverse (222222131312), we get a palindrome (435353353534).

The spelling of 213131222222 in words is "two hundred thirteen billion, one hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty-two".