12221202132131 has 32 divisors (see below), whose sum is σ = 12963650219520. Its totient is φ = 11489092876800.

The previous prime is 12221202132011. The next prime is 12221202132137. The reversal of 12221202132131 is 13123120212221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221202132131 is a prime.

It is a super-2 number, since 2×12221202132131² (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 = 12221202132097 and 12221202132106.

It is not an unprimeable number, because it can be changed into a prime (12221202132137) 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 31 ways as a sum of consecutive naturals, for example, 1634502365 + ... + 1634509841.

It is an arithmetic number, because the mean of its divisors is an integer number (405114069360).

Almost surely, 2^{12221202132131} is an apocalyptic number.

12221202132131 is a deficient number, since it is larger than the sum of its proper divisors (742448087389).

12221202132131 is a wasteful number, since it uses less digits than its factorization.

12221202132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8955.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12221202132131 its reverse (13123120212221), we get a palindrome (25344322344352).

The spelling of 12221202132131 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred thirty-two thousand, one hundred thirty-one".