20222001102221 has 16 divisors (see below), whose sum is σ = 21152804659200. Its totient is φ = 19295525183088.

The previous prime is 20222001102181. The next prime is 20222001102223. The reversal of 20222001102221 is 12220110022202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222001102221 is a prime.

It is a super-2 number, since 2×20222001102221² (a number of 27 digits) contains 22 as substring.

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 20222001102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222001102223) 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, 30731360 + ... + 31382486.

It is an arithmetic number, because the mean of its divisors is an integer number (1322050291200).

Almost surely, 2^{20222001102221} is an apocalyptic number.

It is an amenable number.

20222001102221 is a deficient number, since it is larger than the sum of its proper divisors (930803556979).

20222001102221 is a wasteful number, since it uses less digits than its factorization.

20222001102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654448.

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

Adding to 20222001102221 its reverse (12220110022202), we get a palindrome (32442111124423).

The spelling of 20222001102221 in words is "twenty trillion, two hundred twenty-two billion, one million, one hundred two thousand, two hundred twenty-one".