12251514042 has 12 divisors (see below), whose sum is σ = 26544947130. Its totient is φ = 4083838008.

The previous prime is 12251514001. The next prime is 12251514043. The reversal of 12251514042 is 24041515221.

It is a happy number.

12251514042 is a `hidden beast` number, since 1 + 2 + 2 + 515 + 140 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7404430401 + 4847083641 = 86049^2 + 69621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12251513997 and 12251514015.

It is not an unprimeable number, because it can be changed into a prime (12251514043) 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 5 ways as a sum of consecutive naturals, for example, 340319817 + ... + 340319852.

Almost surely, 2^12251514042 is an apocalyptic number.

12251514042 is an abundant number, since it is smaller than the sum of its proper divisors (14293433088).

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

12251514042 is a wasteful number, since it uses less digits than its factorization.

12251514042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680639677 (or 680639674 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 12251514042 in words is "twelve billion, two hundred fifty-one million, five hundred fourteen thousand, forty-two".