23223122121 has 16 divisors (see below), whose sum is σ = 31543214400. Its totient is φ = 15194275008.

The previous prime is 23223122099. The next prime is 23223122141. The reversal of 23223122121 is 12122132232.

It is not a de Polignac number, because 23223122121 - 2⁵ = 23223122089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23223122141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160686 + ... + 268823.

It is an arithmetic number, because the mean of its divisors is an integer number (1971450900).

Almost surely, 2^23223122121 is an apocalyptic number.

It is an amenable number.

23223122121 is a deficient number, since it is larger than the sum of its proper divisors (8320092279).

23223122121 is a wasteful number, since it uses less digits than its factorization.

23223122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429848.

The product of its digits is 576, while the sum is 21.

Adding to 23223122121 its reverse (12122132232), we get a palindrome (35345254353).

The spelling of 23223122121 in words is "twenty-three billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred twenty-one".