22722205 has 16 divisors (see below), whose sum is σ = 29988864. Its totient is φ = 16390080.

The previous prime is 22722169. The next prime is 22722211. The reversal of 22722205 is 50222722.

22722205 = 80² + 81² + ... + 409².

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22722205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5359 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (1874304).

Almost surely, 2^22722205 is an apocalyptic number.

It is an amenable number.

22722205 is a deficient number, since it is larger than the sum of its proper divisors (7266659).

22722205 is a wasteful number, since it uses less digits than its factorization.

22722205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22722205 is about 4766.7814088754. The cubic root of 22722205 is about 283.2371122709.

Adding to 22722205 its reverse (50222722), we get a palindrome (72944927).

It can be divided in two parts, 22 and 722205, that added together give a palindrome (722227).

The spelling of 22722205 in words is "twenty-two million, seven hundred twenty-two thousand, two hundred five".