22022246 has 4 divisors (see below), whose sum is σ = 33033372. Its totient is φ = 11011122.

The previous prime is 22022237. The next prime is 22022257. The reversal of 22022246 is 64222022.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505560 + ... + 5505563.

It is an arithmetic number, because the mean of its divisors is an integer number (8258343).

Almost surely, 2^22022246 is an apocalyptic number.

22022246 is a deficient number, since it is larger than the sum of its proper divisors (11011126).

22022246 is a wasteful number, since it uses less digits than its factorization.

22022246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011125.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22022246 is about 4692.7865922072. The cubic root of 22022246 is about 280.2983469570.

Adding to 22022246 its reverse (64222022), we get a palindrome (86244268).

The spelling of 22022246 in words is "twenty-two million, twenty-two thousand, two hundred forty-six".