20022001102221 has 4 divisors (see below), whose sum is σ = 26696001469632. Its totient is φ = 13348000734812.

The previous prime is 20022001102211. The next prime is 20022001102231. The reversal of 20022001102221 is 12220110022002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20022001102211) and next prime (20022001102231).

It is a cyclic number.

It is not a de Polignac number, because 20022001102221 - 2¹¹ = 20022001100173 is a prime.

It is a super-2 number, since 2×20022001102221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20022001102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022001102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3337000183701 + ... + 3337000183706.

It is an arithmetic number, because the mean of its divisors is an integer number (6674000367408).

Almost surely, 2^{20022001102221} is an apocalyptic number.

It is an amenable number.

20022001102221 is a deficient number, since it is larger than the sum of its proper divisors (6674000367411).

20022001102221 is an equidigital number, since it uses as much as digits as its factorization.

20022001102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674000367410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20022001102221 its reverse (12220110022002), we get a palindrome (32242111124223).

The spelling of 20022001102221 in words is "twenty trillion, twenty-two billion, one million, one hundred two thousand, two hundred twenty-one".