12213131022131 has 8 divisors (see below), whose sum is σ = 13606140661680. Its totient is φ = 10884912528672.

The previous prime is 12213131022109. The next prime is 12213131022139. The reversal of 12213131022131 is 13122013131221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12213131022131 is a prime.

It is a super-2 number, since 2×12213131022131² (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 = 12213131022097 and 12213131022106.

It is not an unprimeable number, because it can be changed into a prime (12213131022139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16197786125 + ... + 16197786878.

It is an arithmetic number, because the mean of its divisors is an integer number (1700767582710).

Almost surely, 2^{12213131022131} is an apocalyptic number.

12213131022131 is a deficient number, since it is larger than the sum of its proper divisors (1393009639549).

12213131022131 is a wasteful number, since it uses less digits than its factorization.

12213131022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32395573045.

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

Adding to 12213131022131 its reverse (13122013131221), we get a palindrome (25335144153352).

The spelling of 12213131022131 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-one million, twenty-two thousand, one hundred thirty-one".