2221100200221 has 16 divisors (see below), whose sum is σ = 3386902147200. Its totient is φ = 1268311923648.

The previous prime is 2221100200157. The next prime is 2221100200271. The reversal of 2221100200221 is 1220020011222.

It is not a de Polignac number, because 2221100200221 - 2⁶ = 2221100200157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221100200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221100200271) 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, 36977226 + ... + 37037243.

It is an arithmetic number, because the mean of its divisors is an integer number (211681384200).

Almost surely, 2^{2221100200221} is an apocalyptic number.

2221100200221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2221100200221 is a deficient number, since it is larger than the sum of its proper divisors (1165801946979).

2221100200221 is a wasteful number, since it uses less digits than its factorization.

2221100200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74015908.

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

Adding to 2221100200221 its reverse (1220020011222), we get a palindrome (3441120211443).

The spelling of 2221100200221 in words is "two trillion, two hundred twenty-one billion, one hundred million, two hundred thousand, two hundred twenty-one".