22421337 has 4 divisors (see below), whose sum is σ = 29895120. Its totient is φ = 14947556.

The previous prime is 22421309. The next prime is 22421341. The reversal of 22421337 is 73312422.

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 22421337 - 2¹⁰ = 22420313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22421837) 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, 3736887 + ... + 3736892.

It is an arithmetic number, because the mean of its divisors is an integer number (7473780).

Almost surely, 2^22421337 is an apocalyptic number.

It is an amenable number.

22421337 is a deficient number, since it is larger than the sum of its proper divisors (7473783).

22421337 is an equidigital number, since it uses as much as digits as its factorization.

22421337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7473782.

The product of its digits is 2016, while the sum is 24.

The square root of 22421337 is about 4735.1174219865. The cubic root of 22421337 is about 281.9814257672.

Adding to 22421337 its reverse (73312422), we get a palindrome (95733759).

The spelling of 22421337 in words is "twenty-two million, four hundred twenty-one thousand, three hundred thirty-seven".