2221202202201 has 12 divisors (see below), whose sum is σ = 3213868952112. Its totient is φ = 1478278804536.

The previous prime is 2221202202161. The next prime is 2221202202251. The reversal of 2221202202201 is 1022022021222.

2221202202201 is a `hidden beast` number, since 2 + 221 + 2 + 0 + 220 + 220 + 1 = 666.

It is not a de Polignac number, because 2221202202201 - 2²¹ = 2221200105049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221202202251) 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 11 ways as a sum of consecutive naturals, for example, 210216391 + ... + 210226956.

It is an arithmetic number, because the mean of its divisors is an integer number (267822412676).

Almost surely, 2^{2221202202201} is an apocalyptic number.

It is an amenable number.

2221202202201 is a deficient number, since it is larger than the sum of its proper divisors (992666749911).

2221202202201 is a wasteful number, since it uses less digits than its factorization.

2221202202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420443940 (or 420443937 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2221202202201 its reverse (1022022021222), we get a palindrome (3243224223423).

The spelling of 2221202202201 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred two thousand, two hundred one".