12101312220031 has 4 divisors (see below), whose sum is σ = 12132908335872. Its totient is φ = 12069716104192.

The previous prime is 12101312219999. The next prime is 12101312220037. The reversal of 12101312220031 is 13002221310121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101312220031 - 2⁵ = 12101312219999 is a prime.

It is a super-2 number, since 2×12101312220031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101312219990 and 12101312220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101312220037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15798057346 + ... + 15798058111.

It is an arithmetic number, because the mean of its divisors is an integer number (3033227083968).

Almost surely, 2^{12101312220031} is an apocalyptic number.

12101312220031 is a deficient number, since it is larger than the sum of its proper divisors (31596115841).

12101312220031 is an equidigital number, since it uses as much as digits as its factorization.

12101312220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31596115840.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12101312220031 its reverse (13002221310121), we get a palindrome (25103533530152).

The spelling of 12101312220031 in words is "twelve trillion, one hundred one billion, three hundred twelve million, two hundred twenty thousand, thirty-one".