22712210 has 8 divisors (see below), whose sum is σ = 40881996. Its totient is φ = 9084880.

The previous prime is 22712171. The next prime is 22712231. The reversal of 22712210 is 1221722.

It can be written as a sum of positive squares in 2 ways, for example, as 18983449 + 3728761 = 4357^2 + 1931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135601 + ... + 1135620.

Almost surely, 2^22712210 is an apocalyptic number.

22712210 is a deficient number, since it is larger than the sum of its proper divisors (18169786).

22712210 is a wasteful number, since it uses less digits than its factorization.

22712210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271228.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 22712210 is about 4765.7328922213. The cubic root of 22712210 is about 283.1955762473.

Adding to 22712210 its reverse (1221722), we get a palindrome (23933932).

It can be divided in two parts, 22712 and 210, that added together give a palindrome (22922).

The spelling of 22712210 in words is "twenty-two million, seven hundred twelve thousand, two hundred ten".