2000002221 has 12 divisors (see below), whose sum is σ = 3301591072. Its totient is φ = 1142858376.

The previous prime is 2000002217. The next prime is 2000002259. The reversal of 2000002221 is 1222000002.

It is not a de Polignac number, because 2000002221 - 2² = 2000002217 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000002261) 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, 15872971 + ... + 15873096.

Almost surely, 2^2000002221 is an apocalyptic number.

2000002221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2000002221 is a deficient number, since it is larger than the sum of its proper divisors (1301588851).

2000002221 is a wasteful number, since it uses less digits than its factorization.

2000002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31746080 (or 31746077 counting only the distinct ones).

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

The square root of 2000002221 is about 44721.3843815238. The cubic root of 2000002221 is about 1259.9215162755.

Adding to 2000002221 its reverse (1222000002), we get a palindrome (3222002223).

The spelling of 2000002221 in words is "two billion, two thousand, two hundred twenty-one".