2000000002221 has 12 divisors (see below), whose sum is σ = 3111111114748. Its totient is φ = 1230769232064.

The previous prime is 2000000002199. The next prime is 2000000002223. The reversal of 2000000002221 is 1222000000002.

It can be written as a sum of positive squares in 2 ways, for example, as 1062857902500 + 937142099721 = 1030950^2 + 968061^2 .

It is not a de Polignac number, because 2000000002221 - 2⁹ = 2000000001709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000000002223) 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 11 ways as a sum of consecutive naturals, for example, 8547008440 + ... + 8547008673.

Almost surely, 2^{2000000002221} is an apocalyptic number.

It is an amenable number.

2000000002221 is a deficient number, since it is larger than the sum of its proper divisors (1111111112527).

2000000002221 is a wasteful number, since it uses less digits than its factorization.

2000000002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094017132 (or 17094017129 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 2000000002221 its reverse (1222000000002), we get a palindrome (3222000002223).

The spelling of 2000000002221 in words is "two trillion, two thousand, two hundred twenty-one".