22011220200221 has 8 divisors (see below), whose sum is σ = 25173161602560. Its totient is φ = 18853649141328.

The previous prime is 22011220200197. The next prime is 22011220200227. The reversal of 22011220200221 is 12200202211022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011220200221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011220200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011220200227) 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, 1092575066 + ... + 1092595211.

It is an arithmetic number, because the mean of its divisors is an integer number (3146645200320).

Almost surely, 2^{22011220200221} is an apocalyptic number.

It is an amenable number.

22011220200221 is a deficient number, since it is larger than the sum of its proper divisors (3161941402339).

22011220200221 is a wasteful number, since it uses less digits than its factorization.

22011220200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185171723.

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

Adding to 22011220200221 its reverse (12200202211022), we get a palindrome (34211422411243).

The spelling of 22011220200221 in words is "twenty-two trillion, eleven billion, two hundred twenty million, two hundred thousand, two hundred twenty-one".