12021231322131 has 32 divisors (see below), whose sum is σ = 17779580517888. Its totient is φ = 7186044096000.

The previous prime is 12021231322109. The next prime is 12021231322147. The reversal of 12021231322131 is 13122313212021.

It is not a de Polignac number, because 12021231322131 - 2¹⁷ = 12021231191059 is a prime.

It is a super-2 number, since 2×12021231322131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021231322181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20120476 + ... + 20709321.

It is an arithmetic number, because the mean of its divisors is an integer number (555611891184).

Almost surely, 2^{12021231322131} is an apocalyptic number.

12021231322131 is a deficient number, since it is larger than the sum of its proper divisors (5758349195757).

12021231322131 is a wasteful number, since it uses less digits than its factorization.

12021231322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40830091.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12021231322131 its reverse (13122313212021), we get a palindrome (25143544534152).

The spelling of 12021231322131 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred thirty-one".