23226621221 has 8 divisors (see below), whose sum is σ = 23260997760. Its totient is φ = 23192270352.

The previous prime is 23226621211. The next prime is 23226621227. The reversal of 23226621221 is 12212662232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23226621221 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 (23226621227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449736 + ... + 2459198.

It is an arithmetic number, because the mean of its divisors is an integer number (2907624720).

Almost surely, 2^23226621221 is an apocalyptic number.

It is an amenable number.

23226621221 is a deficient number, since it is larger than the sum of its proper divisors (34376539).

23226621221 is a wasteful number, since it uses less digits than its factorization.

23226621221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835.

The product of its digits is 6912, while the sum is 29.

The spelling of 23226621221 in words is "twenty-three billion, two hundred twenty-six million, six hundred twenty-one thousand, two hundred twenty-one".