22622227 has 2 divisors, whose sum is σ = 22622228. Its totient is φ = 22622226.

The previous prime is 22622221. The next prime is 22622239. The reversal of 22622227 is 72222622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22622227 - 2⁷ = 22622099 is a prime.

It is equal to p_1425922 and since 22622227 and 1425922 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22622221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11311113 + 11311114.

It is an arithmetic number, because the mean of its divisors is an integer number (11311114).

Almost surely, 2^22622227 is an apocalyptic number.

22622227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22622227 is an equidigital number, since it uses as much as digits as its factorization.

22622227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 25.

The square root of 22622227 is about 4756.2828973895. The cubic root of 22622227 is about 282.8210858295.

Adding to 22622227 its reverse (72222622), we get a palindrome (94844849).

It can be divided in two parts, 2262 and 2227, that added together give a square (4489 = 67²).

The spelling of 22622227 in words is "twenty-two million, six hundred twenty-two thousand, two hundred twenty-seven".