252222213 has 8 divisors (see below), whose sum is σ = 339763648. Its totient is φ = 166414464.

The previous prime is 252222211. The next prime is 252222259. The reversal of 252222213 is 312222252.

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

It is not a de Polignac number, because 252222213 - 2¹ = 252222211 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252222213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252222211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433081 + ... + 433662.

It is an arithmetic number, because the mean of its divisors is an integer number (42470456).

Almost surely, 2^252222213 is an apocalyptic number.

It is an amenable number.

252222213 is a deficient number, since it is larger than the sum of its proper divisors (87541435).

252222213 is an equidigital number, since it uses as much as digits as its factorization.

252222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866843.

The product of its digits is 960, while the sum is 21.

The square root of 252222213 is about 15881.5053757508. The cubic root of 252222213 is about 631.8215635831.

Adding to 252222213 its reverse (312222252), we get a palindrome (564444465).

The spelling of 252222213 in words is "two hundred fifty-two million, two hundred twenty-two thousand, two hundred thirteen".