23221121269 has 2 divisors, whose sum is σ = 23221121270. Its totient is φ = 23221121268.

The previous prime is 23221121257. The next prime is 23221121387. The reversal of 23221121269 is 96212112232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23024420644 + 196700625 = 151738^2 + 14025^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221121269 - 2³¹ = 21073637621 is a prime.

It is a super-2 number, since 2×23221121269² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23221121269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221121669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610560634 + 11610560635.

It is an arithmetic number, because the mean of its divisors is an integer number (11610560635).

Almost surely, 2^23221121269 is an apocalyptic number.

It is an amenable number.

23221121269 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221121269 is an equidigital number, since it uses as much as digits as its factorization.

23221121269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The spelling of 23221121269 in words is "twenty-three billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred sixty-nine".