22224973 has 2 divisors, whose sum is σ = 22224974. Its totient is φ = 22224972.

The previous prime is 22224971. The next prime is 22225019. The reversal of 22224973 is 37942222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21650409 + 574564 = 4653^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 22224973 - 2¹ = 22224971 is a prime.

Together with 22224971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22224971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112486 + 11112487.

It is an arithmetic number, because the mean of its divisors is an integer number (11112487).

Almost surely, 2^22224973 is an apocalyptic number.

It is an amenable number.

22224973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22224973 is an equidigital number, since it uses as much as digits as its factorization.

22224973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 22224973 is about 4714.3369629249. The cubic root of 22224973 is about 281.1558217678.

The spelling of 22224973 in words is "twenty-two million, two hundred twenty-four thousand, nine hundred seventy-three".