12251311626 has 32 divisors (see below), whose sum is σ = 24823330560. Its totient is φ = 4030363584.

The previous prime is 12251311601. The next prime is 12251311637. The reversal of 12251311626 is 62611315221.

It is a junction number, because it is equal to n+sod(n) for n = 12251311593 and 12251311602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613976 + ... + 1621548.

It is an arithmetic number, because the mean of its divisors is an integer number (775729080).

Almost surely, 2^12251311626 is an apocalyptic number.

12251311626 is an abundant number, since it is smaller than the sum of its proper divisors (12572018934).

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

12251311626 is a wasteful number, since it uses less digits than its factorization.

12251311626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its digits is 4320, while the sum is 30.

Adding to 12251311626 its reverse (62611315221), we get a palindrome (74862626847).

The spelling of 12251311626 in words is "twelve billion, two hundred fifty-one million, three hundred eleven thousand, six hundred twenty-six".