22205699 has 4 divisors (see below), whose sum is σ = 23374440. Its totient is φ = 21036960.

The previous prime is 22205693. The next prime is 22205707. The reversal of 22205699 is 99650222.

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-22205699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22205693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584342 + ... + 584379.

It is an arithmetic number, because the mean of its divisors is an integer number (5843610).

Almost surely, 2^22205699 is an apocalyptic number.

22205699 is a deficient number, since it is larger than the sum of its proper divisors (1168741).

22205699 is a wasteful number, since it uses less digits than its factorization.

22205699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168740.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 22205699 is about 4712.2923296417. The cubic root of 22205699 is about 281.0745233630.

The spelling of 22205699 in words is "twenty-two million, two hundred five thousand, six hundred ninety-nine".