22271770 has 16 divisors (see below), whose sum is σ = 40153320. Its totient is φ = 8894464.

The previous prime is 22271761. The next prime is 22271773. The reversal of 22271770 is 7717222.

It can be written as a sum of positive squares in 4 ways, for example, as 22268961 + 2809 = 4719^2 + 53^2 .

It is not an unprimeable number, because it can be changed into a prime (22271773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6714 + ... + 9466.

Almost surely, 2^22271770 is an apocalyptic number.

22271770 is a deficient number, since it is larger than the sum of its proper divisors (17881550).

22271770 is a wasteful number, since it uses less digits than its factorization.

22271770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 22271770 is about 4719.2976172308. The cubic root of 22271770 is about 281.3530177348.

Adding to 22271770 its reverse (7717222), we get a palindrome (29988992).

The spelling of 22271770 in words is "twenty-two million, two hundred seventy-one thousand, seven hundred seventy".