23312301201221 has 4 divisors (see below), whose sum is σ = 23312311764672. Its totient is φ = 23312290637772.

The previous prime is 23312301201107. The next prime is 23312301201227. The reversal of 23312301201221 is 12210210321332.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23312301201221 - 2³⁰ = 23311227459397 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 (23312301201227) 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, 570791 + ... + 6852036.

It is an arithmetic number, because the mean of its divisors is an integer number (5828077941168).

Almost surely, 2^{23312301201221} is an apocalyptic number.

It is an amenable number.

23312301201221 is a deficient number, since it is larger than the sum of its proper divisors (10563451).

23312301201221 is an equidigital number, since it uses as much as digits as its factorization.

23312301201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563450.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23312301201221 its reverse (12210210321332), we get a palindrome (35522511522553).

The spelling of 23312301201221 in words is "twenty-three trillion, three hundred twelve billion, three hundred one million, two hundred one thousand, two hundred twenty-one".