23002322221 has 4 divisors (see below), whose sum is σ = 23105471872. Its totient is φ = 22899172572.

The previous prime is 23002322191. The next prime is 23002322249. The reversal of 23002322221 is 12222320032.

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 23002322221 - 2⁷ = 23002322093 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 (23002322521) 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, 51574491 + ... + 51574936.

It is an arithmetic number, because the mean of its divisors is an integer number (5776367968).

Almost surely, 2^23002322221 is an apocalyptic number.

It is an amenable number.

23002322221 is a deficient number, since it is larger than the sum of its proper divisors (103149651).

23002322221 is a wasteful number, since it uses less digits than its factorization.

23002322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103149650.

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

Adding to 23002322221 its reverse (12222320032), we get a palindrome (35224642253).

The spelling of 23002322221 in words is "twenty-three billion, two million, three hundred twenty-two thousand, two hundred twenty-one".