12422171372 has 24 divisors (see below), whose sum is σ = 23414044752. Its totient is φ = 5732568000.

The previous prime is 12422171341. The next prime is 12422171387. The reversal of 12422171372 is 27317122421.

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, 795722 + ... + 811182.

It is an arithmetic number, because the mean of its divisors is an integer number (975585198).

Almost surely, 2^12422171372 is an apocalyptic number.

It is an amenable number.

12422171372 is a deficient number, since it is larger than the sum of its proper divisors (10991873380).

12422171372 is a wasteful number, since it uses less digits than its factorization.

12422171372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30929 (or 30927 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

Adding to 12422171372 its reverse (27317122421), we get a palindrome (39739293793).

The spelling of 12422171372 in words is "twelve billion, four hundred twenty-two million, one hundred seventy-one thousand, three hundred seventy-two".