12501242226 has 24 divisors (see below), whose sum is σ = 29548391184. Its totient is φ = 3788255160.

The previous prime is 12501242197. The next prime is 12501242263. The reversal of 12501242226 is 62224210521.

It is a self number, because there is not a number n which added to its sum of digits gives 12501242226.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31568596 + ... + 31568991.

It is an arithmetic number, because the mean of its divisors is an integer number (1231182966).

Almost surely, 2^12501242226 is an apocalyptic number.

12501242226 is an abundant number, since it is smaller than the sum of its proper divisors (17047148958).

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

12501242226 is a wasteful number, since it uses less digits than its factorization.

12501242226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63137606 (or 63137603 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12501242226 its reverse (62224210521), we get a palindrome (74725452747).

The spelling of 12501242226 in words is "twelve billion, five hundred one million, two hundred forty-two thousand, two hundred twenty-six".