2221000033209 has 64 divisors (see below), whose sum is σ = 3297572720640. Its totient is φ = 1323864622080.

The previous prime is 2221000033169. The next prime is 2221000033289. The reversal of 2221000033209 is 9023300001222.

It is not a de Polignac number, because 2221000033209 - 2¹⁷ = 2220999902137 is a prime.

It is a super-2 number, since 2×2221000033209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221000033289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11511879 + ... + 11703219.

It is an arithmetic number, because the mean of its divisors is an integer number (51524573760).

Almost surely, 2^{2221000033209} is an apocalyptic number.

It is an amenable number.

2221000033209 is a deficient number, since it is larger than the sum of its proper divisors (1076572687431).

2221000033209 is a wasteful number, since it uses less digits than its factorization.

2221000033209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191550.

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 2221000033209 in words is "two trillion, two hundred twenty-one billion, thirty-three thousand, two hundred nine".