2221000210221 has 32 divisors (see below), whose sum is σ = 3227631964032. Its totient is φ = 1350345185280.

The previous prime is 2221000210127. The next prime is 2221000210267. The reversal of 2221000210221 is 1220120001222.

It is not a de Polignac number, because 2221000210221 - 2¹⁷ = 2221000079149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221000210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000210421) 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 31 ways as a sum of consecutive naturals, for example, 574326 + ... + 2184456.

It is an arithmetic number, because the mean of its divisors is an integer number (100863498876).

Almost surely, 2^{2221000210221} is an apocalyptic number.

It is an amenable number.

2221000210221 is a deficient number, since it is larger than the sum of its proper divisors (1006631753811).

2221000210221 is a wasteful number, since it uses less digits than its factorization.

2221000210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610573.

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

Adding to 2221000210221 its reverse (1220120001222), we get a palindrome (3441120211443).

The spelling of 2221000210221 in words is "two trillion, two hundred twenty-one billion, two hundred ten thousand, two hundred twenty-one".