22770227 has 4 divisors (see below), whose sum is σ = 23968680. Its totient is φ = 21571776.

The previous prime is 22770203. The next prime is 22770229. The reversal of 22770227 is 72207722.

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

It is a cyclic number.

It is not a de Polignac number, because 22770227 - 2¹⁶ = 22704691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22770227.

It is not an unprimeable number, because it can be changed into a prime (22770229) 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, 599198 + ... + 599235.

It is an arithmetic number, because the mean of its divisors is an integer number (5992170).

Almost surely, 2^22770227 is an apocalyptic number.

22770227 is a deficient number, since it is larger than the sum of its proper divisors (1198453).

22770227 is a wasteful number, since it uses less digits than its factorization.

22770227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198452.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 22770227 is about 4771.8159017297. The cubic root of 22770227 is about 283.4365066780.

Adding to 22770227 its reverse (72207722), we get a palindrome (94977949).

The spelling of 22770227 in words is "twenty-two million, seven hundred seventy thousand, two hundred twenty-seven".