2002221999 has 6 divisors (see below), whose sum is σ = 2892098456. Its totient is φ = 1334814660.

The previous prime is 2002221997. The next prime is 2002222007. The reversal of 2002221999 is 9991222002.

It is not a de Polignac number, because 2002221999 - 2¹ = 2002221997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002221997) 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 5 ways as a sum of consecutive naturals, for example, 111234547 + ... + 111234564.

Almost surely, 2^2002221999 is an apocalyptic number.

2002221999 is a deficient number, since it is larger than the sum of its proper divisors (889876457).

2002221999 is a wasteful number, since it uses less digits than its factorization.

2002221999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222469117 (or 222469114 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 2002221999 is about 44746.1953578179. The cubic root of 2002221999 is about 1260.3874677596.

The spelling of 2002221999 in words is "two billion, two million, two hundred twenty-one thousand, nine hundred ninety-nine".