22241100221 has 32 divisors (see below), whose sum is σ = 24169622400. Its totient is φ = 20391321600.

The previous prime is 22241100209. The next prime is 22241100281. The reversal of 22241100221 is 12200114222.

It is a cyclic number.

It is not a de Polignac number, because 22241100221 - 2²² = 22236905917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22241100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241100281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32186486 + ... + 32187176.

It is an arithmetic number, because the mean of its divisors is an integer number (755300700).

Almost surely, 2^22241100221 is an apocalyptic number.

It is an amenable number.

22241100221 is a deficient number, since it is larger than the sum of its proper divisors (1928522179).

22241100221 is a wasteful number, since it uses less digits than its factorization.

22241100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22241100221 its reverse (12200114222), we get a palindrome (34441214443).

The spelling of 22241100221 in words is "twenty-two billion, two hundred forty-one million, one hundred thousand, two hundred twenty-one".