201122111220131 has 2 divisors, whose sum is σ = 201122111220132. Its totient is φ = 201122111220130.

The previous prime is 201122111220103. The next prime is 201122111220161. The reversal of 201122111220131 is 131022111221102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201122111220131 is a prime.

It is a super-2 number, since 2×201122111220131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201122111220161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561055610065 + 100561055610066.

It is an arithmetic number, because the mean of its divisors is an integer number (100561055610066).

Almost surely, 2^{201122111220131} is an apocalyptic number.

201122111220131 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122111220131 is an equidigital number, since it uses as much as digits as its factorization.

201122111220131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 201122111220131 its reverse (131022111221102), we get a palindrome (332144222441233).

The spelling of 201122111220131 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, one hundred thirty-one".