252222012 has 90 divisors (see below), whose sum is σ = 767056752. Its totient is φ = 72058896.

The previous prime is 252222011. The next prime is 252222023. The reversal of 252222012 is 210222252.

252222012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7933 + ... + 23819.

Almost surely, 2^252222012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383528376).

252222012 is an abundant number, since it is smaller than the sum of its proper divisors (514834740).

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

252222012 is a wasteful number, since it uses less digits than its factorization.

252222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15917 (or 15899 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 252222012 is about 15881.4990476340. The cubic root of 252222012 is about 631.8213957468.

Adding to 252222012 its reverse (210222252), we get a palindrome (462444264).

The spelling of 252222012 in words is "two hundred fifty-two million, two hundred twenty-two thousand, twelve".