22210003221 has 16 divisors (see below), whose sum is σ = 33995587584. Its totient is φ = 12634515504.

The previous prime is 22210003217. The next prime is 22210003223. The reversal of 22210003221 is 12230001222.

It is a happy number.

It is not a de Polignac number, because 22210003221 - 2² = 22210003217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22210003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210003223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2366661 + ... + 2376026.

It is an arithmetic number, because the mean of its divisors is an integer number (2124724224).

Almost surely, 2^22210003221 is an apocalyptic number.

22210003221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22210003221 is a deficient number, since it is larger than the sum of its proper divisors (11785584363).

22210003221 is a wasteful number, since it uses less digits than its factorization.

22210003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742920.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22210003221 its reverse (12230001222), we get a palindrome (34440004443).

The spelling of 22210003221 in words is "twenty-two billion, two hundred ten million, three thousand, two hundred twenty-one".