22261227 has 4 divisors (see below), whose sum is σ = 29681640. Its totient is φ = 14840816.

The previous prime is 22261207. The next prime is 22261247. The reversal of 22261227 is 72216222.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22261207) and next prime (22261247).

It is a cyclic number.

It is not a de Polignac number, because 22261227 - 2⁶ = 22261163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22261197 and 22261206.

It is not an unprimeable number, because it can be changed into a prime (22261207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3710202 + ... + 3710207.

It is an arithmetic number, because the mean of its divisors is an integer number (7420410).

Almost surely, 2^22261227 is an apocalyptic number.

22261227 is a deficient number, since it is larger than the sum of its proper divisors (7420413).

22261227 is an equidigital number, since it uses as much as digits as its factorization.

22261227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420412.

The product of its digits is 1344, while the sum is 24.

The square root of 22261227 is about 4718.1804755647. The cubic root of 22261227 is about 281.3086151412.

Adding to 22261227 its reverse (72216222), we get a palindrome (94477449).

The spelling of 22261227 in words is "twenty-two million, two hundred sixty-one thousand, two hundred twenty-seven".