22100002 has 16 divisors (see below), whose sum is σ = 34990560. Its totient is φ = 10439712.

The previous prime is 22099999. The next prime is 22100041. The reversal of 22100002 is 20000122.

It is a happy number.

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, 20878 + ... + 21910.

It is an arithmetic number, because the mean of its divisors is an integer number (2186910).

Almost surely, 2^22100002 is an apocalyptic number.

22100002 is a deficient number, since it is larger than the sum of its proper divisors (12890558).

22100002 is a wasteful number, since it uses less digits than its factorization.

22100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 22100002 is about 4701.0639221351. The cubic root of 22100002 is about 280.6278513044.

Adding to 22100002 its reverse (20000122), we get a palindrome (42100124).

The spelling of 22100002 in words is "twenty-two million, one hundred thousand, two".