12501020164412 has 24 divisors (see below), whose sum is σ = 24583946011296. Its totient is φ = 5518845021888.

The previous prime is 12501020164397. The next prime is 12501020164421. The reversal of 12501020164412 is 21446102010521.

It is a happy number.

It is a super-2 number, since 2×12501020164412² (a number of 27 digits) contains 22 as substring.

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, 5226177803 + ... + 5226180194.

It is an arithmetic number, because the mean of its divisors is an integer number (1024331083804).

Almost surely, 2^{12501020164412} is an apocalyptic number.

It is an amenable number.

12501020164412 is a deficient number, since it is larger than the sum of its proper divisors (12082925846884).

12501020164412 is a wasteful number, since it uses less digits than its factorization.

12501020164412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452358037 (or 10452358035 counting only the distinct ones).

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

Adding to 12501020164412 its reverse (21446102010521), we get a palindrome (33947122174933).

The spelling of 12501020164412 in words is "twelve trillion, five hundred one billion, twenty million, one hundred sixty-four thousand, four hundred twelve".