23001200221 has 4 divisors (see below), whose sum is σ = 23034487744. Its totient is φ = 22967912700.

The previous prime is 23001200197. The next prime is 23001200227. The reversal of 23001200221 is 12200210032.

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 23001200221 - 2⁷ = 23001200093 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 (23001200227) 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, 16642725 + ... + 16644106.

It is an arithmetic number, because the mean of its divisors is an integer number (5758621936).

Almost surely, 2^23001200221 is an apocalyptic number.

It is an amenable number.

23001200221 is a deficient number, since it is larger than the sum of its proper divisors (33287523).

23001200221 is an equidigital number, since it uses as much as digits as its factorization.

23001200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33287522.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 23001200221 its reverse (12200210032), we get a palindrome (35201410253).

The spelling of 23001200221 in words is "twenty-three billion, one million, two hundred thousand, two hundred twenty-one".