221333222999 has 12 divisors (see below), whose sum is σ = 257635136304. Its totient is φ = 189591966144.

The previous prime is 221333222989. The next prime is 221333223011. The reversal of 221333222999 is 999222333122.

It is a happy number.

It is not a de Polignac number, because 221333222999 - 2⁸ = 221333222743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221333222909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1378187 + ... + 1530380.

It is an arithmetic number, because the mean of its divisors is an integer number (21469594692).

Almost surely, 2^221333222999 is an apocalyptic number.

221333222999 is a deficient number, since it is larger than the sum of its proper divisors (36301913305).

221333222999 is a wasteful number, since it uses less digits than its factorization.

221333222999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910134 (or 2910127 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The spelling of 221333222999 in words is "two hundred twenty-one billion, three hundred thirty-three million, two hundred twenty-two thousand, nine hundred ninety-nine".