220999199 has 4 divisors (see below), whose sum is σ = 221047536. Its totient is φ = 220950864.

The previous prime is 220999189. The next prime is 220999213. The reversal of 220999199 is 991999022.

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

It is a cyclic number.

It is not a de Polignac number, because 220999199 - 2¹⁶ = 220933663 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 (220999109) 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, 16499 + ... + 26724.

It is an arithmetic number, because the mean of its divisors is an integer number (55261884).

Almost surely, 2^220999199 is an apocalyptic number.

220999199 is a deficient number, since it is larger than the sum of its proper divisors (48337).

220999199 is an equidigital number, since it uses as much as digits as its factorization.

220999199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48336.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 220999199 is about 14866.0418067487. The cubic root of 220999199 is about 604.5936291628.

The spelling of 220999199 in words is "two hundred twenty million, nine hundred ninety-nine thousand, one hundred ninety-nine".