12224130131021 has 8 divisors (see below), whose sum is σ = 12555924094104. Its totient is φ = 11892410487360.

The previous prime is 12224130131011. The next prime is 12224130131023. The reversal of 12224130131021 is 12013103142221.

It can be written as a sum of positive squares in 4 ways, for example, as 2965869508900 + 9258260622121 = 1722170^2 + 3042739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12224130131021 - 2⁶ = 12224130130957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224130131023) 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 7 ways as a sum of consecutive naturals, for example, 18246350 + ... + 18904431.

It is an arithmetic number, because the mean of its divisors is an integer number (1569490511763).

Almost surely, 2^{12224130131021} is an apocalyptic number.

It is an amenable number.

12224130131021 is a deficient number, since it is larger than the sum of its proper divisors (331793963083).

12224130131021 is an equidigital number, since it uses as much as digits as its factorization.

12224130131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159711.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12224130131021 its reverse (12013103142221), we get a palindrome (24237233273242).

The spelling of 12224130131021 in words is "twelve trillion, two hundred twenty-four billion, one hundred thirty million, one hundred thirty-one thousand, twenty-one".