131122012201 has 2 divisors, whose sum is σ = 131122012202. Its totient is φ = 131122012200.

The previous prime is 131122012187. The next prime is 131122012211. The reversal of 131122012201 is 102210221131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68499452176 + 62622560025 = 261724^2 + 250245^2 .

It is a cyclic number.

It is not a de Polignac number, because 131122012201 - 2⁵ = 131122012169 is a prime.

It is not a weakly prime, because it can be changed into another prime (131122012211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561006100 + 65561006101.

It is an arithmetic number, because the mean of its divisors is an integer number (65561006101).

Almost surely, 2^131122012201 is an apocalyptic number.

It is an amenable number.

131122012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131122012201 is an equidigital number, since it uses as much as digits as its factorization.

131122012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131122012201 its reverse (102210221131), we get a palindrome (233332233332).

The spelling of 131122012201 in words is "one hundred thirty-one billion, one hundred twenty-two million, twelve thousand, two hundred one".