22212274 has 16 divisors (see below), whose sum is σ = 38140416. Its totient is φ = 9504000.

The previous prime is 22212271. The next prime is 22212277. The reversal of 22212274 is 47221222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22212271) and next prime (22212277).

It is not an unprimeable number, because it can be changed into a prime (22212271) 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, 13074 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (2383776).

Almost surely, 2^22212274 is an apocalyptic number.

22212274 is a deficient number, since it is larger than the sum of its proper divisors (15928142).

22212274 is a wasteful number, since it uses less digits than its factorization.

22212274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601.

The product of its digits is 896, while the sum is 22.

The square root of 22212274 is about 4712.9899214830. The cubic root of 22212274 is about 281.1022622274.

Adding to 22212274 its reverse (47221222), we get a palindrome (69433496).

The spelling of 22212274 in words is "twenty-two million, two hundred twelve thousand, two hundred seventy-four".