23214441221 has 4 divisors (see below), whose sum is σ = 23228870700. Its totient is φ = 23200011744.

The previous prime is 23214441197. The next prime is 23214441269. The reversal of 23214441221 is 12214441232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16722110596 + 6492330625 = 129314^2 + 80575^2 .

It is a cyclic number.

It is not a de Polignac number, because 23214441221 - 2⁶ = 23214441157 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 (23214441521) 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, 7212326 + ... + 7215543.

It is an arithmetic number, because the mean of its divisors is an integer number (5807217675).

Almost surely, 2^23214441221 is an apocalyptic number.

It is an amenable number.

23214441221 is a deficient number, since it is larger than the sum of its proper divisors (14429479).

23214441221 is a wasteful number, since it uses less digits than its factorization.

23214441221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14429478.

The product of its digits is 3072, while the sum is 26.

Adding to 23214441221 its reverse (12214441232), we get a palindrome (35428882453).

The spelling of 23214441221 in words is "twenty-three billion, two hundred fourteen million, four hundred forty-one thousand, two hundred twenty-one".