23351422221 has 12 divisors (see below), whose sum is σ = 35196346848. Its totient is φ = 14890761864.

The previous prime is 23351422189. The next prime is 23351422229. The reversal of 23351422221 is 12222415332.

23351422221 is a `hidden beast` number, since 233 + 5 + 1 + 422 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 23351422221 - 2⁵ = 23351422189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23351422229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56404195 + ... + 56404608.

It is an arithmetic number, because the mean of its divisors is an integer number (2933028904).

Almost surely, 2^23351422221 is an apocalyptic number.

It is an amenable number.

23351422221 is a deficient number, since it is larger than the sum of its proper divisors (11844924627).

23351422221 is a wasteful number, since it uses less digits than its factorization.

23351422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112808832 (or 112808829 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 23351422221 its reverse (12222415332), we get a palindrome (35573837553).

The spelling of 23351422221 in words is "twenty-three billion, three hundred fifty-one million, four hundred twenty-two thousand, two hundred twenty-one".