222013309 has 16 divisors (see below), whose sum is σ = 269852800. Its totient is φ = 178412544.

The previous prime is 222013279. The next prime is 222013313. The reversal of 222013309 is 903310222.

It is a cyclic number.

It is not a de Polignac number, because 222013309 - 2⁹ = 222012797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222013309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222013339) 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 15 ways as a sum of consecutive naturals, for example, 4297 + ... + 21505.

It is an arithmetic number, because the mean of its divisors is an integer number (16865800).

Almost surely, 2^222013309 is an apocalyptic number.

It is an amenable number.

222013309 is a deficient number, since it is larger than the sum of its proper divisors (47839491).

222013309 is a wasteful number, since it uses less digits than its factorization.

222013309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17332.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 222013309 is about 14900.1110398547. Note that the first 3 decimals coincide. The cubic root of 222013309 is about 605.5169945064.

The spelling of 222013309 in words is "two hundred twenty-two million, thirteen thousand, three hundred nine".