131212021122019 has 16 divisors (see below), whose sum is σ = 132071435608320. Its totient is φ = 130354041257440.

The previous prime is 131212021121983. The next prime is 131212021122043. The reversal of 131212021122019 is 910221120212131.

It is not a de Polignac number, because 131212021122019 - 2⁹ = 131212021121507 is a prime.

It is a super-2 number, since 2×131212021122019² (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 (131212001122019) 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, 1724371164 + ... + 1724447254.

It is an arithmetic number, because the mean of its divisors is an integer number (8254464725520).

Almost surely, 2^{131212021122019} is an apocalyptic number.

131212021122019 is a deficient number, since it is larger than the sum of its proper divisors (859414486301).

131212021122019 is a wasteful number, since it uses less digits than its factorization.

131212021122019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85370.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 131212021122019 in words is "one hundred thirty-one trillion, two hundred twelve billion, twenty-one million, one hundred twenty-two thousand, nineteen".