22222064 has 20 divisors (see below), whose sum is σ = 43170600. Its totient is φ = 11081280.

The previous prime is 22222063. The next prime is 22222087. The reversal of 22222064 is 46022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5087 + ... + 8385.

It is an arithmetic number, because the mean of its divisors is an integer number (2158530).

Almost surely, 2^22222064 is an apocalyptic number.

It is an amenable number.

22222064 is a deficient number, since it is larger than the sum of its proper divisors (20948536).

22222064 is a wasteful number, since it uses less digits than its factorization.

22222064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3722 counting only the distinct ones).

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

The square root of 22222064 is about 4714.0284258795. The cubic root of 22222064 is about 281.1435545167.

Adding to 22222064 its reverse (46022222), we get a palindrome (68244286).

The spelling of 22222064 in words is "twenty-two million, two hundred twenty-two thousand, sixty-four".