22227227 has 4 divisors (see below), whose sum is σ = 24247896. Its totient is φ = 20206560.

The previous prime is 22227221. The next prime is 22227229. The reversal of 22227227 is 72272222.

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

It is not a de Polignac number, because 22227227 - 2²² = 18032923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22227196 and 22227205.

It is not an unprimeable number, because it can be changed into a prime (22227221) 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, 1010318 + ... + 1010339.

It is an arithmetic number, because the mean of its divisors is an integer number (6061974).

Almost surely, 2^22227227 is an apocalyptic number.

22227227 is a deficient number, since it is larger than the sum of its proper divisors (2020669).

22227227 is a wasteful number, since it uses less digits than its factorization.

22227227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020668.

The product of its digits is 3136, while the sum is 26.

The square root of 22227227 is about 4714.5760148713. The cubic root of 22227227 is about 281.1653261483.

Adding to 22227227 its reverse (72272222), we get a palindrome (94499449).

It can be divided in two parts, 2222 and 7227, that added together give a palindrome (9449).

The spelling of 22227227 in words is "twenty-two million, two hundred twenty-seven thousand, two hundred twenty-seven".