12213132211312 has 20 divisors (see below), whose sum is σ = 23686302963960. Its totient is φ = 6100537898048.

The previous prime is 12213132211169. The next prime is 12213132211361. The reversal of 12213132211312 is 21311223131221.

It is a super-2 number, since 2×12213132211312² (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 3 ways as a sum of consecutive naturals, for example, 376746262 + ... + 376778677.

It is an arithmetic number, because the mean of its divisors is an integer number (1184315148198).

Almost surely, 2^{12213132211312} is an apocalyptic number.

It is an amenable number.

12213132211312 is a deficient number, since it is larger than the sum of its proper divisors (11473170752648).

12213132211312 is a wasteful number, since it uses less digits than its factorization.

12213132211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753525960 (or 753525954 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 12213132211312 its reverse (21311223131221), we get a palindrome (33524355342533).

The spelling of 12213132211312 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-two million, two hundred eleven thousand, three hundred twelve".