22220002 has 16 divisors (see below), whose sum is σ = 38903040. Its totient is φ = 9319968.

The previous prime is 22219999. The next prime is 22220027. The reversal of 22220002 is 20002222.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16227 + ... + 17542.

It is an arithmetic number, because the mean of its divisors is an integer number (2431440).

Almost surely, 2^22220002 is an apocalyptic number.

22220002 is a deficient number, since it is larger than the sum of its proper divisors (16683038).

22220002 is a wasteful number, since it uses less digits than its factorization.

22220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33825.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 22220002 is about 4713.8097118997. The cubic root of 22220002 is about 281.1348584157.

Adding to 22220002 its reverse (20002222), we get a palindrome (42222224).

It can be divided in two parts, 222 and 20002, that multiplied together give a palindrome (4440444).

The spelling of 22220002 in words is "twenty-two million, two hundred twenty thousand, two".