22221000001 has 8 divisors (see below), whose sum is σ = 22757087808. Its totient is φ = 21691110000.

The previous prime is 22220999987. The next prime is 22221000007. The reversal of 22221000001 is 10000012222.

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

It is a cyclic number.

It is not a de Polignac number, because 22221000001 - 2¹⁵ = 22220967233 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1542195 + ... + 1556536.

It is an arithmetic number, because the mean of its divisors is an integer number (2844635976).

Almost surely, 2^22221000001 is an apocalyptic number.

It is an amenable number.

22221000001 is a deficient number, since it is larger than the sum of its proper divisors (536087807).

22221000001 is a wasteful number, since it uses less digits than its factorization.

22221000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098903.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22221000001 its reverse (10000012222), we get a palindrome (32221012223).

It can be divided in two parts, 2222 and 1000001, that multiplied together give a palindrome (2222002222).

The spelling of 22221000001 in words is "twenty-two billion, two hundred twenty-one million, one", and thus it is an aban number.