12262172212 has 6 divisors (see below), whose sum is σ = 21458801378. Its totient is φ = 6131086104.

The previous prime is 12262172201. The next prime is 12262172231. The reversal of 12262172212 is 21227126221.

It can be written as a sum of positive squares in only one way, i.e., 8267173776 + 3994998436 = 90924^2 + 63206^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1532771523 + ... + 1532771530.

Almost surely, 2^12262172212 is an apocalyptic number.

It is an amenable number.

12262172212 is a deficient number, since it is larger than the sum of its proper divisors (9196629166).

12262172212 is a wasteful number, since it uses less digits than its factorization.

12262172212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065543057 (or 3065543055 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

Adding to 12262172212 its reverse (21227126221), we get a palindrome (33489298433).

The spelling of 12262172212 in words is "twelve billion, two hundred sixty-two million, one hundred seventy-two thousand, two hundred twelve".