22222002 has 32 divisors (see below), whose sum is σ = 50595840. Its totient is φ = 6440720.

The previous prime is 22221977. The next prime is 22222049. The reversal of 22222002 is 20022222.

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 15 ways as a sum of consecutive naturals, for example, 5802 + ... + 8837.

It is an arithmetic number, because the mean of its divisors is an integer number (1581120).

Almost surely, 2^22222002 is an apocalyptic number.

22222002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22222002 is an abundant number, since it is smaller than the sum of its proper divisors (28373838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222002 is a wasteful number, since it uses less digits than its factorization.

22222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14678.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 22222002 is about 4714.0218497584. The cubic root of 22222002 is about 281.1432930511.

Adding to 22222002 its reverse (20022222), we get a palindrome (42244224).

It can be divided in two parts, 2222 and 2002, that multiplied together give a palindrome (4448444).

The spelling of 22222002 in words is "twenty-two million, two hundred twenty-two thousand, two".