23121442221399 has 6 divisors (see below), whose sum is σ = 33397638764256. Its totient is φ = 15414294814260.

The previous prime is 23121442221359. The next prime is 23121442221403. The reversal of 23121442221399 is 99312224412132.

23121442221399 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 1 + 4 + 422 + 213 + 9 + 9 = 666.

It is not a de Polignac number, because 23121442221399 - 2⁹ = 23121442220887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121442221359) 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 5 ways as a sum of consecutive naturals, for example, 1284524567847 + ... + 1284524567864.

It is an arithmetic number, because the mean of its divisors is an integer number (5566273127376).

Almost surely, 2^{23121442221399} is an apocalyptic number.

23121442221399 is a deficient number, since it is larger than the sum of its proper divisors (10276196542857).

23121442221399 is a wasteful number, since it uses less digits than its factorization.

23121442221399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569049135717 (or 2569049135714 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 23121442221399 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred forty-two million, two hundred twenty-one thousand, three hundred ninety-nine".