213312122 has 8 divisors (see below), whose sum is σ = 320112000. Its totient is φ = 106608124.

The previous prime is 213312119. The next prime is 213312133. The reversal of 213312122 is 221213312.

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

It is a super-2 number, since 2×213312122² = 91004122784285768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213312122.

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, 18122 + ... + 27477.

It is an arithmetic number, because the mean of its divisors is an integer number (40014000).

Almost surely, 2^213312122 is an apocalyptic number.

213312122 is a deficient number, since it is larger than the sum of its proper divisors (106799878).

213312122 is a wasteful number, since it uses less digits than its factorization.

213312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47940.

The product of its digits is 144, while the sum is 17.

The square root of 213312122 is about 14605.2087283955. The cubic root of 213312122 is about 597.5008287659.

Adding to 213312122 its reverse (221213312), we get a palindrome (434525434).

The spelling of 213312122 in words is "two hundred thirteen million, three hundred twelve thousand, one hundred twenty-two".