22210000221 has 4 divisors (see below), whose sum is σ = 29613333632. Its totient is φ = 14806666812.

The previous prime is 22210000207. The next prime is 22210000223. The reversal of 22210000221 is 12200001222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22210000221 - 2⁹ = 22209999709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210000197 and 22210000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210000223) 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, 3701666701 + ... + 3701666706.

It is an arithmetic number, because the mean of its divisors is an integer number (7403333408).

Almost surely, 2^22210000221 is an apocalyptic number.

It is an amenable number.

22210000221 is a deficient number, since it is larger than the sum of its proper divisors (7403333411).

22210000221 is an equidigital number, since it uses as much as digits as its factorization.

22210000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7403333410.

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

Adding to 22210000221 its reverse (12200001222), we get a palindrome (34410001443).

The spelling of 22210000221 in words is "twenty-two billion, two hundred ten million, two hundred twenty-one", and thus it is an aban number.