22221000002 has 8 divisors (see below), whose sum is σ = 33332274576. Its totient is φ = 11110241812.

The previous prime is 22220999987. The next prime is 22221000007. The reversal of 22221000002 is 20000012222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22221000007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7313 + ... + 210939.

It is an arithmetic number, because the mean of its divisors is an integer number (4166534322).

Almost surely, 2^22221000002 is an apocalyptic number.

22221000002 is a deficient number, since it is larger than the sum of its proper divisors (11111274574).

22221000002 is a wasteful number, since it uses less digits than its factorization.

22221000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258192.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22221000002 its reverse (20000012222), we get a palindrome (42221012224).

The spelling of 22221000002 in words is "twenty-two billion, two hundred twenty-one million, two", and thus it is an aban number.