23221212299 has 4 divisors (see below), whose sum is σ = 23761240536. Its totient is φ = 22681184064.

The previous prime is 23221212281. The next prime is 23221212317. The reversal of 23221212299 is 99221212232.

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

It is an interprime number because it is at equal distance from previous prime (23221212281) and next prime (23221212317).

It is a cyclic number.

It is not a de Polignac number, because 23221212299 - 2³² = 18926245003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221212269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270014054 + ... + 270014139.

It is an arithmetic number, because the mean of its divisors is an integer number (5940310134).

Almost surely, 2^23221212299 is an apocalyptic number.

23221212299 is a deficient number, since it is larger than the sum of its proper divisors (540028237).

23221212299 is an equidigital number, since it uses as much as digits as its factorization.

23221212299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540028236.

The product of its digits is 15552, while the sum is 35.

The spelling of 23221212299 in words is "twenty-three billion, two hundred twenty-one million, two hundred twelve thousand, two hundred ninety-nine".