22221000102 has 96 divisors (see below), whose sum is σ = 52541443584. Its totient is φ = 6246072000.

The previous prime is 22221000089. The next prime is 22221000187. The reversal of 22221000102 is 20100012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4837827 + ... + 4842417.

It is an arithmetic number, because the mean of its divisors is an integer number (547306704).

Almost surely, 2^22221000102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22221000102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26270721792).

22221000102 is an abundant number, since it is smaller than the sum of its proper divisors (30320443482).

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

22221000102 is a wasteful number, since it uses less digits than its factorization.

22221000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4874 (or 4867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22221000102 its reverse (20100012222), we get a palindrome (42321012324).

The spelling of 22221000102 in words is "twenty-two billion, two hundred twenty-one million, one hundred two", and thus it is an aban number.