252112212 has 108 divisors (see below), whose sum is σ = 723468928. Its totient is φ = 73893600.

The previous prime is 252112187. The next prime is 252112229. The reversal of 252112212 is 212211252.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134103 + ... + 135969.

Almost surely, 2^252112212 is an apocalyptic number.

252112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361734464).

252112212 is an abundant number, since it is smaller than the sum of its proper divisors (471356716).

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

252112212 is a wasteful number, since it uses less digits than its factorization.

252112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 1914 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 252112212 is about 15878.0418188138. The cubic root of 252112212 is about 631.7296986767.

Adding to 252112212 its reverse (212211252), we get a palindrome (464323464).

The spelling of 252112212 in words is "two hundred fifty-two million, one hundred twelve thousand, two hundred twelve".