20002201102221 has 16 divisors (see below), whose sum is σ = 28721189521920. Its totient is φ = 12309012440640.

The previous prime is 20002201102207. The next prime is 20002201102243. The reversal of 20002201102221 is 12220110220002.

It is not a de Polignac number, because 20002201102221 - 2⁶ = 20002201102157 is a prime.

It is a super-2 number, since 2×20002201102221² (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 20002201102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002201101221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26718591 + ... + 27457011.

It is an arithmetic number, because the mean of its divisors is an integer number (1795074345120).

Almost surely, 2^{20002201102221} is an apocalyptic number.

It is an amenable number.

20002201102221 is a deficient number, since it is larger than the sum of its proper divisors (8718988419699).

20002201102221 is a wasteful number, since it uses less digits than its factorization.

20002201102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432996.

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

Adding to 20002201102221 its reverse (12220110220002), we get a palindrome (32222311322223).

The spelling of 20002201102221 in words is "twenty trillion, two billion, two hundred one million, one hundred two thousand, two hundred twenty-one".