131222424222131 has 6 divisors (see below), whose sum is σ = 144236218359996. Its totient is φ = 119293112929100.

The previous prime is 131222424222061. The next prime is 131222424222167.

It is a happy number.

131222424222131 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-131222424222131 is a prime.

It is a super-2 number, since 2×131222424222131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222414222131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542241422285 + ... + 542241422526.

It is an arithmetic number, because the mean of its divisors is an integer number (24039369726666).

Almost surely, 2^{131222424222131} is an apocalyptic number.

131222424222131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131222424222131 is a deficient number, since it is larger than the sum of its proper divisors (13013794137865).

131222424222131 is a wasteful number, since it uses less digits than its factorization.

131222424222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084482844833 (or 1084482844822 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The spelling of 131222424222131 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, four hundred twenty-four million, two hundred twenty-two thousand, one hundred thirty-one".