252244021012 has 6 divisors (see below), whose sum is σ = 441427036778. Its totient is φ = 126122010504.

The previous prime is 252244020967. The next prime is 252244021031. The reversal of 252244021012 is 210120442252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 245940613776 + 6303407236 = 495924^2 + 79394^2 .

It is a super-2 number, since 2×252244021012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31530502623 + ... + 31530502630.

Almost surely, 2^252244021012 is an apocalyptic number.

It is an amenable number.

252244021012 is a deficient number, since it is larger than the sum of its proper divisors (189183015766).

252244021012 is a wasteful number, since it uses less digits than its factorization.

252244021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63061005257 (or 63061005255 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 252244021012 its reverse (210120442252), we get a palindrome (462364463264).

It can be divided in two parts, 2522440 and 21012, that added together give a palindrome (2543452).

The spelling of 252244021012 in words is "two hundred fifty-two billion, two hundred forty-four million, twenty-one thousand, twelve".