22646121 has 4 divisors (see below), whose sum is σ = 30194832. Its totient is φ = 15097412.

The previous prime is 22646093. The next prime is 22646131. The reversal of 22646121 is 12164622.

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 22646121 - 2²³ = 14257513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22646091 and 22646100.

It is not an unprimeable number, because it can be changed into a prime (22646131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774351 + ... + 3774356.

It is an arithmetic number, because the mean of its divisors is an integer number (7548708).

Almost surely, 2^22646121 is an apocalyptic number.

It is an amenable number.

22646121 is a deficient number, since it is larger than the sum of its proper divisors (7548711).

22646121 is an equidigital number, since it uses as much as digits as its factorization.

22646121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548710.

The product of its digits is 1152, while the sum is 24.

The square root of 22646121 is about 4758.7940699299. The cubic root of 22646121 is about 282.9206243528.

It can be divided in two parts, 2264 and 6121, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 22646121 in words is "twenty-two million, six hundred forty-six thousand, one hundred twenty-one".