23022121121 has 4 divisors (see below), whose sum is σ = 23063013552. Its totient is φ = 22981228692.

The previous prime is 23022121103. The next prime is 23022121127. The reversal of 23022121121 is 12112122032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23022121121 - 2²² = 23017926817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23022121121.

It is not an unprimeable number, because it can be changed into a prime (23022121127) 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, 20445371 + ... + 20446496.

It is an arithmetic number, because the mean of its divisors is an integer number (5765753388).

Almost surely, 2^23022121121 is an apocalyptic number.

It is an amenable number.

23022121121 is a deficient number, since it is larger than the sum of its proper divisors (40892431).

23022121121 is an equidigital number, since it uses as much as digits as its factorization.

23022121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40892430.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23022121121 its reverse (12112122032), we get a palindrome (35134243153).

The spelling of 23022121121 in words is "twenty-three billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".