12521244116 has 24 divisors (see below), whose sum is σ = 22232046144. Its totient is φ = 6169383360.

The previous prime is 12521244097. The next prime is 12521244149. The reversal of 12521244116 is 61144212521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321161 + ... + 358031.

It is an arithmetic number, because the mean of its divisors is an integer number (926335256).

Almost surely, 2^12521244116 is an apocalyptic number.

It is an amenable number.

12521244116 is a deficient number, since it is larger than the sum of its proper divisors (9710802028).

12521244116 is a wasteful number, since it uses less digits than its factorization.

12521244116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38111 (or 38109 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

Adding to 12521244116 its reverse (61144212521), we get a palindrome (73665456637).

The spelling of 12521244116 in words is "twelve billion, five hundred twenty-one million, two hundred forty-four thousand, one hundred sixteen".