131012221402121 has 16 divisors (see below), whose sum is σ = 137990292008448. Its totient is φ = 124222317465600.

The previous prime is 131012221402079. The next prime is 131012221402177. The reversal of 131012221402121 is 121204122210131.

It is a cyclic number.

It is not a de Polignac number, because 131012221402121 - 2²⁶ = 131012154293257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131012221402421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134303855 + ... + 135275828.

It is an arithmetic number, because the mean of its divisors is an integer number (8624393250528).

Almost surely, 2^{131012221402121} is an apocalyptic number.

It is an amenable number.

131012221402121 is a deficient number, since it is larger than the sum of its proper divisors (6978070606327).

131012221402121 is a wasteful number, since it uses less digits than its factorization.

131012221402121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269580032.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 131012221402121 its reverse (121204122210131), we get a palindrome (252216343612252).

The spelling of 131012221402121 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-one million, four hundred two thousand, one hundred twenty-one".