221422199 has 4 divisors (see below), whose sum is σ = 223614600. Its totient is φ = 219229800.

The previous prime is 221422193. The next prime is 221422207. The reversal of 221422199 is 991224122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221422199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422193) 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, 1096049 + ... + 1096250.

It is an arithmetic number, because the mean of its divisors is an integer number (55903650).

Almost surely, 2^221422199 is an apocalyptic number.

221422199 is a deficient number, since it is larger than the sum of its proper divisors (2192401).

221422199 is a wasteful number, since it uses less digits than its factorization.

221422199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192400.

The product of its digits is 5184, while the sum is 32.

The square root of 221422199 is about 14880.2620608644. The cubic root of 221422199 is about 604.9791209241.

The spelling of 221422199 in words is "two hundred twenty-one million, four hundred twenty-two thousand, one hundred ninety-nine".