22134921 has 4 divisors (see below), whose sum is σ = 29513232. Its totient is φ = 14756612.

The previous prime is 22134877. The next prime is 22134941. The reversal of 22134921 is 12943122.

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 22134921 - 2¹⁰ = 22133897 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22134891 and 22134900.

It is not an unprimeable number, because it can be changed into a prime (22134941) 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, 3689151 + ... + 3689156.

It is an arithmetic number, because the mean of its divisors is an integer number (7378308).

Almost surely, 2^22134921 is an apocalyptic number.

It is an amenable number.

22134921 is a deficient number, since it is larger than the sum of its proper divisors (7378311).

22134921 is an equidigital number, since it uses as much as digits as its factorization.

22134921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378310.

The product of its digits is 864, while the sum is 24.

The square root of 22134921 is about 4704.7764027635. The cubic root of 22134921 is about 280.7755750827.

The spelling of 22134921 in words is "twenty-two million, one hundred thirty-four thousand, nine hundred twenty-one".