12221100111131 has 2 divisors, whose sum is σ = 12221100111132. Its totient is φ = 12221100111130.

The previous prime is 12221100110993. The next prime is 12221100111223. The reversal of 12221100111131 is 13111100112221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221100111131 - 2³⁰ = 12220026369307 is a prime.

It is a super-2 number, since 2×12221100111131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12221100114131) 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 as a sum of consecutive naturals, namely, 6110550055565 + 6110550055566.

It is an arithmetic number, because the mean of its divisors is an integer number (6110550055566).

Almost surely, 2^{12221100111131} is an apocalyptic number.

12221100111131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221100111131 is an equidigital number, since it uses as much as digits as its factorization.

12221100111131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12221100111131 its reverse (13111100112221), we get a palindrome (25332200223352).

The spelling of 12221100111131 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, one hundred eleven thousand, one hundred thirty-one".