23302220221 has 4 divisors (see below), whose sum is σ = 26631108832. Its totient is φ = 19973331612.

The previous prime is 23302220219. The next prime is 23302220231. The reversal of 23302220221 is 12202220332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23302220221 - 2¹ = 23302220219 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 (23302220231) 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, 1664444295 + ... + 1664444308.

It is an arithmetic number, because the mean of its divisors is an integer number (6657777208).

Almost surely, 2^23302220221 is an apocalyptic number.

It is an amenable number.

23302220221 is a deficient number, since it is larger than the sum of its proper divisors (3328888611).

23302220221 is an equidigital number, since it uses as much as digits as its factorization.

23302220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328888610.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 23302220221 its reverse (12202220332), we get a palindrome (35504440553).

The spelling of 23302220221 in words is "twenty-three billion, three hundred two million, two hundred twenty thousand, two hundred twenty-one".