23622121 has 2 divisors, whose sum is σ = 23622122. Its totient is φ = 23622120.

The previous prime is 23622103. The next prime is 23622133. The reversal of 23622121 is 12122632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23386896 + 235225 = 4836^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 23622121 - 2¹¹ = 23620073 is a prime.

It is not a weakly prime, because it can be changed into another prime (23622721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11811060 + 11811061.

It is an arithmetic number, because the mean of its divisors is an integer number (11811061).

Almost surely, 2^23622121 is an apocalyptic number.

It is an amenable number.

23622121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23622121 is an equidigital number, since it uses as much as digits as its factorization.

23622121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 23622121 is about 4860.2593552196. The cubic root of 23622121 is about 286.9280212199.

Adding to 23622121 its reverse (12122632), we get a palindrome (35744753).

The spelling of 23622121 in words is "twenty-three million, six hundred twenty-two thousand, one hundred twenty-one".