2205909099 has 16 divisors (see below), whose sum is σ = 3380704800. Its totient is φ = 1419895008.

The previous prime is 2205909077. The next prime is 2205909113. The reversal of 2205909099 is 9909095022.

It is not a de Polignac number, because 2205909099 - 2²³ = 2197520491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205909029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1407844 + ... + 1409409.

It is an arithmetic number, because the mean of its divisors is an integer number (211294050).

Almost surely, 2^2205909099 is an apocalyptic number.

2205909099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2205909099 is a deficient number, since it is larger than the sum of its proper divisors (1174795701).

2205909099 is a wasteful number, since it uses less digits than its factorization.

2205909099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817291 (or 2817285 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 2205909099 is about 46967.1065640625. The cubic root of 2205909099 is about 1301.7548488299.

The spelling of 2205909099 in words is "two billion, two hundred five million, nine hundred nine thousand, ninety-nine".