22722206 has 16 divisors (see below), whose sum is σ = 38301984. Its totient is φ = 10030944.

The previous prime is 22722169. The next prime is 22722211. The reversal of 22722206 is 60222722.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18401 + ... + 19596.

It is an arithmetic number, because the mean of its divisors is an integer number (2393874).

Almost surely, 2^22722206 is an apocalyptic number.

22722206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22722206 is a deficient number, since it is larger than the sum of its proper divisors (15579778).

22722206 is a wasteful number, since it uses less digits than its factorization.

22722206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38035.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22722206 is about 4766.7815137680. The cubic root of 22722206 is about 283.2371164260.

Adding to 22722206 its reverse (60222722), we get a palindrome (82944928).

The spelling of 22722206 in words is "twenty-two million, seven hundred twenty-two thousand, two hundred six".