1252544431212 has 72 divisors (see below), whose sum is σ = 3199551958512. Its totient is φ = 413115984000.

The previous prime is 1252544431169. The next prime is 1252544431219. The reversal of 1252544431212 is 2121344452521.

1252544431212 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 5 + 4 + 4 + 431 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1252544431219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5602518 + ... + 5821794.

It is an arithmetic number, because the mean of its divisors is an integer number (44438221646).

Almost surely, 2^{1252544431212} is an apocalyptic number.

1252544431212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252544431212 is an abundant number, since it is smaller than the sum of its proper divisors (1947007527300).

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

1252544431212 is a wasteful number, since it uses less digits than its factorization.

1252544431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220959 (or 220954 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 1252544431212 its reverse (2121344452521), we get a palindrome (3373888883733).

The spelling of 1252544431212 in words is "one trillion, two hundred fifty-two billion, five hundred forty-four million, four hundred thirty-one thousand, two hundred twelve".