252312122 has 8 divisors (see below), whose sum is σ = 391518900. Its totient is φ = 121805824.

The previous prime is 252312107. The next prime is 252312149. The reversal of 252312122 is 221213252.

It can be written as a sum of positive squares in 2 ways, for example, as 241149841 + 11162281 = 15529^2 + 3341^2 .

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

It is a super-2 number, since 2×252312122² = 127322813816285768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252312094 and 252312103.

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, 2175047 + ... + 2175162.

Almost surely, 2^252312122 is an apocalyptic number.

252312122 is a deficient number, since it is larger than the sum of its proper divisors (139206778).

252312122 is a wasteful number, since it uses less digits than its factorization.

252312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350240.

The product of its digits is 480, while the sum is 20.

The square root of 252312122 is about 15884.3357431150. The cubic root of 252312122 is about 631.8966292640.

Adding to 252312122 its reverse (221213252), we get a palindrome (473525374).

The spelling of 252312122 in words is "two hundred fifty-two million, three hundred twelve thousand, one hundred twenty-two".