2251213332 has 48 divisors (see below), whose sum is σ = 5380435200. Its totient is φ = 732269952.

The previous prime is 2251213291. The next prime is 2251213337. The reversal of 2251213332 is 2333121522.

It is a happy number.

It is a super-2 number, since 2×2251213332² = 10135922932349084448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251213337) 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 15 ways as a sum of consecutive naturals, for example, 191118 + ... + 202554.

It is an arithmetic number, because the mean of its divisors is an integer number (112092400).

Almost surely, 2^2251213332 is an apocalyptic number.

It is an amenable number.

2251213332 is an abundant number, since it is smaller than the sum of its proper divisors (3129221868).

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

2251213332 is a wasteful number, since it uses less digits than its factorization.

2251213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840 (or 11838 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 2251213332 is about 47446.9528210190. The cubic root of 2251213332 is about 1310.6061976959.

Adding to 2251213332 its reverse (2333121522), we get a palindrome (4584334854).

The spelling of 2251213332 in words is "two billion, two hundred fifty-one million, two hundred thirteen thousand, three hundred thirty-two".