22271266 has 8 divisors (see below), whose sum is σ = 33428844. Its totient is φ = 11128320.

The previous prime is 22271239. The next prime is 22271273. The reversal of 22271266 is 66217222.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 378225 = 4679^2 + 615^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746 + ... + 6898.

Almost surely, 2^22271266 is an apocalyptic number.

22271266 is a deficient number, since it is larger than the sum of its proper divisors (11157578).

22271266 is a wasteful number, since it uses less digits than its factorization.

22271266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316.

The product of its digits is 4032, while the sum is 28.

The square root of 22271266 is about 4719.2442191520. The cubic root of 22271266 is about 281.3508954219.

Adding to 22271266 its reverse (66217222), we get a palindrome (88488488).

It can be divided in two parts, 222712 and 66, that added together give a triangular number (222778 = T₆₆₇).

The spelling of 22271266 in words is "twenty-two million, two hundred seventy-one thousand, two hundred sixty-six".