12213132102131 has 4 divisors (see below), whose sum is σ = 12213444011064. Its totient is φ = 12212820193200.

The previous prime is 12213132102047. The next prime is 12213132102169. The reversal of 12213132102131 is 13120123131221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12213132102131 is a prime.

It is a super-2 number, since 2×12213132102131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12213132102097 and 12213132102106.

It is not an unprimeable number, because it can be changed into a prime (12213132122131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155895725 + ... + 155974046.

It is an arithmetic number, because the mean of its divisors is an integer number (3053361002766).

Almost surely, 2^{12213132102131} is an apocalyptic number.

12213132102131 is a deficient number, since it is larger than the sum of its proper divisors (311908933).

12213132102131 is an equidigital number, since it uses as much as digits as its factorization.

12213132102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311908932.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12213132102131 its reverse (13120123131221), we get a palindrome (25333255233352).

The spelling of 12213132102131 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred two thousand, one hundred thirty-one".