22422237 has 4 divisors (see below), whose sum is σ = 29896320. Its totient is φ = 14948156.

The previous prime is 22422227. The next prime is 22422247. The reversal of 22422237 is 73222422.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (22422227) and next prime (22422247).

It is a cyclic number.

It is not a de Polignac number, because 22422237 - 2¹⁹ = 21897949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422227) 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, 3737037 + ... + 3737042.

It is an arithmetic number, because the mean of its divisors is an integer number (7474080).

Almost surely, 2^22422237 is an apocalyptic number.

It is an amenable number.

22422237 is a deficient number, since it is larger than the sum of its proper divisors (7474083).

22422237 is an equidigital number, since it uses as much as digits as its factorization.

22422237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474082.

The product of its digits is 2688, while the sum is 24.

The square root of 22422237 is about 4735.2124556349. The cubic root of 22422237 is about 281.9851986598.

Adding to 22422237 its reverse (73222422), we get a palindrome (95644659).

The spelling of 22422237 in words is "twenty-two million, four hundred twenty-two thousand, two hundred thirty-seven".