22214399 has 2 divisors, whose sum is σ = 22214400. Its totient is φ = 22214398.

The previous prime is 22214371. The next prime is 22214429. The reversal of 22214399 is 99341222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22214399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22214099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107199 + 11107200.

It is an arithmetic number, because the mean of its divisors is an integer number (11107200).

Almost surely, 2^22214399 is an apocalyptic number.

22214399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22214399 is an equidigital number, since it uses as much as digits as its factorization.

22214399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 22214399 is about 4713.2153568450. The cubic root of 22214399 is about 281.1112260891. Note that the first 3 decimals are identical.

The spelling of 22214399 in words is "twenty-two million, two hundred fourteen thousand, three hundred ninety-nine".