22281002 has 16 divisors (see below), whose sum is σ = 34944000. Its totient is φ = 10642320.

The previous prime is 22280989. The next prime is 22281023. The reversal of 22281002 is 20018222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624 + ... + 7172.

It is an arithmetic number, because the mean of its divisors is an integer number (2184000).

Almost surely, 2^22281002 is an apocalyptic number.

22281002 is a deficient number, since it is larger than the sum of its proper divisors (12662998).

22281002 is a wasteful number, since it uses less digits than its factorization.

22281002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 22281002 is about 4720.2756275455. The cubic root of 22281002 is about 281.3918874526.

Adding to 22281002 its reverse (20018222), we get a palindrome (42299224).

The spelling of 22281002 in words is "twenty-two million, two hundred eighty-one thousand, two".