12545251222 has 16 divisors (see below), whose sum is σ = 21517432992. Its totient is φ = 5373714240.

The previous prime is 12545251207. The next prime is 12545251253. The reversal of 12545251222 is 22215254521.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 207429 + ... + 260992.

It is an arithmetic number, because the mean of its divisors is an integer number (1344839562).

Almost surely, 2^12545251222 is an apocalyptic number.

12545251222 is a deficient number, since it is larger than the sum of its proper divisors (8972181770).

12545251222 is a wasteful number, since it uses less digits than its factorization.

12545251222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470343.

The product of its digits is 16000, while the sum is 31.

The spelling of 12545251222 in words is "twelve billion, five hundred forty-five million, two hundred fifty-one thousand, two hundred twenty-two".