22343121 has 14 divisors (see below), whose sum is σ = 33500450. Its totient is φ = 14894928.

The previous prime is 22343099. The next prime is 22343129. The reversal of 22343121 is 12134322.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 9641025 = 3564^2 + 3105^2 .

It is not a de Polignac number, because 22343121 - 2⁵ = 22343089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22343094 and 22343103.

It is not an unprimeable number, because it can be changed into a prime (22343129) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14596 + ... + 16053.

Almost surely, 2^22343121 is an apocalyptic number.

It is an amenable number.

22343121 is a deficient number, since it is larger than the sum of its proper divisors (11157329).

22343121 is an frugal number, since it uses more digits than its factorization.

22343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30667 (or 30652 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22343121 is about 4726.8510659846. The cubic root of 22343121 is about 281.6531498402.

Adding to 22343121 its reverse (12134322), we get a palindrome (34477443).

The spelling of 22343121 in words is "twenty-two million, three hundred forty-three thousand, one hundred twenty-one".