12554215112 has 16 divisors (see below), whose sum is σ = 23543257500. Its totient is φ = 6276013120.

The previous prime is 12554215109. The next prime is 12554215117. The reversal of 12554215112 is 21151245521.

It can be written as a sum of positive squares in 2 ways, for example, as 11712867076 + 841348036 = 108226^2 + 29006^2 .

It is not an unprimeable number, because it can be changed into a prime (12554215117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86987 + ... + 180762.

Almost surely, 2^12554215112 is an apocalyptic number.

It is an amenable number.

12554215112 is a deficient number, since it is larger than the sum of its proper divisors (10989042388).

12554215112 is a wasteful number, since it uses less digits than its factorization.

12554215112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273616 (or 273612 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The spelling of 12554215112 in words is "twelve billion, five hundred fifty-four million, two hundred fifteen thousand, one hundred twelve".