2112131252 has 24 divisors (see below), whose sum is σ = 4608287040. Its totient is φ = 822908160.

The previous prime is 2112131243. The next prime is 2112131299. The reversal of 2112131252 is 2521312112.

It is a super-2 number, since 2×2112131252² = 8922196851350175008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3428477 + ... + 3429092.

It is an arithmetic number, because the mean of its divisors is an integer number (192011960).

Almost surely, 2^2112131252 is an apocalyptic number.

2112131252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112131252 is an abundant number, since it is smaller than the sum of its proper divisors (2496155788).

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

2112131252 is a wasteful number, since it uses less digits than its factorization.

2112131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857591 (or 6857589 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 2112131252 is about 45957.9291526500. The cubic root of 2112131252 is about 1283.0403094336.

Adding to 2112131252 its reverse (2521312112), we get a palindrome (4633443364).

The spelling of 2112131252 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, two hundred fifty-two".