23122121 has 8 divisors (see below), whose sum is σ = 25274784. Its totient is φ = 20977920.

The previous prime is 23122117. The next prime is 23122123. The reversal of 23122121 is 12122132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23122121 - 2² = 23122117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23122096 and 23122105.

It is not an unprimeable number, because it can be changed into a prime (23122123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4526 + ... + 8168.

It is an arithmetic number, because the mean of its divisors is an integer number (3159348).

Almost surely, 2^23122121 is an apocalyptic number.

It is an amenable number.

23122121 is a deficient number, since it is larger than the sum of its proper divisors (2152663).

23122121 is a wasteful number, since it uses less digits than its factorization.

23122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231.

The product of its digits is 48, while the sum is 14.

The square root of 23122121 is about 4808.5466619344. The cubic root of 23122121 is about 284.8891371414.

Adding to 23122121 its reverse (12122132), we get a palindrome (35244253).

The spelling of 23122121 in words is "twenty-three million, one hundred twenty-two thousand, one hundred twenty-one".