22022245 has 16 divisors (see below), whose sum is σ = 31177728. Its totient is φ = 14613120.

The previous prime is 22022237. The next prime is 22022257. The reversal of 22022245 is 54222022.

It is not a de Polignac number, because 22022245 - 2³ = 22022237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9064 + ... + 11233.

It is an arithmetic number, because the mean of its divisors is an integer number (1948608).

Almost surely, 2^22022245 is an apocalyptic number.

It is an amenable number.

22022245 is a deficient number, since it is larger than the sum of its proper divisors (9155483).

22022245 is a wasteful number, since it uses less digits than its factorization.

22022245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20340.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22022245 is about 4692.7864856607. The cubic root of 22022245 is about 280.2983427143.

Adding to 22022245 its reverse (54222022), we get a palindrome (76244267).

The spelling of 22022245 in words is "twenty-two million, twenty-two thousand, two hundred forty-five".