12213222001131 has 4 divisors (see below), whose sum is σ = 16284296001512. Its totient is φ = 8142148000752.

The previous prime is 12213222001063. The next prime is 12213222001139. The reversal of 12213222001131 is 13110022231221.

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

It is not a de Polignac number, because 12213222001131 - 2²⁵ = 12213188446699 is a prime.

It is a super-2 number, since 2×12213222001131² (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 = 12213222001098 and 12213222001107.

It is not an unprimeable number, because it can be changed into a prime (12213222001139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035537000186 + ... + 2035537000191.

It is an arithmetic number, because the mean of its divisors is an integer number (4071074000378).

Almost surely, 2^{12213222001131} is an apocalyptic number.

12213222001131 is a deficient number, since it is larger than the sum of its proper divisors (4071074000381).

12213222001131 is an equidigital number, since it uses as much as digits as its factorization.

12213222001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071074000380.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12213222001131 its reverse (13110022231221), we get a palindrome (25323244232352).

The spelling of 12213222001131 in words is "twelve trillion, two hundred thirteen billion, two hundred twenty-two million, one thousand, one hundred thirty-one".