12210331252 has 24 divisors (see below), whose sum is σ = 24566903424. Its totient is φ = 5201661792.

The previous prime is 12210331249. The next prime is 12210331337. The reversal of 12210331252 is 25213301221.

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, 1300963 + ... + 1310314.

It is an arithmetic number, because the mean of its divisors is an integer number (1023620976).

Almost surely, 2^12210331252 is an apocalyptic number.

It is an amenable number.

12210331252 is an abundant number, since it is smaller than the sum of its proper divisors (12356572172).

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

12210331252 is a wasteful number, since it uses less digits than its factorization.

12210331252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611455 (or 2611453 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12210331252 its reverse (25213301221), we get a palindrome (37423632473).

The spelling of 12210331252 in words is "twelve billion, two hundred ten million, three hundred thirty-one thousand, two hundred fifty-two".