71631425022212 has 72 divisors (see below), whose sum is σ = 138940644820320. Its totient is φ = 32046405731200.

The previous prime is 71631425022193. The next prime is 71631425022277. The reversal of 71631425022212 is 21222052413617.

It is a super-2 number, since 2×71631425022212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129923864 + ... + 130474032.

It is an arithmetic number, because the mean of its divisors is an integer number (1929731178060).

Almost surely, 2^{71631425022212} is an apocalyptic number.

It is an amenable number.

71631425022212 is a deficient number, since it is larger than the sum of its proper divisors (67309219798108).

71631425022212 is a wasteful number, since it uses less digits than its factorization.

71631425022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550913 (or 550840 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 71631425022212 its reverse (21222052413617), we get a palindrome (92853477435829).

The spelling of 71631425022212 in words is "seventy-one trillion, six hundred thirty-one billion, four hundred twenty-five million, twenty-two thousand, two hundred twelve".