22011200221 has 16 divisors (see below), whose sum is σ = 22356734400. Its totient is φ = 21669292800.

The previous prime is 22011200209. The next prime is 22011200249. The reversal of 22011200221 is 12200211022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22011200221 - 2¹⁷ = 22011069149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011200201) 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, 7806750 + ... + 7809568.

It is an arithmetic number, because the mean of its divisors is an integer number (1397295900).

Almost surely, 2^22011200221 is an apocalyptic number.

It is an amenable number.

22011200221 is a deficient number, since it is larger than the sum of its proper divisors (345534179).

22011200221 is a wasteful number, since it uses less digits than its factorization.

22011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22011200221 its reverse (12200211022), we get a palindrome (34211411243).

The spelling of 22011200221 in words is "twenty-two billion, eleven million, two hundred thousand, two hundred twenty-one".