222338591 has 4 divisors (see below), whose sum is σ = 223811184. Its totient is φ = 220866000.

The previous prime is 222338573. The next prime is 222338639. The reversal of 222338591 is 195833222.

222338591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222338591 - 2¹⁰ = 222337567 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 (222331591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736070 + ... + 736371.

It is an arithmetic number, because the mean of its divisors is an integer number (55952796).

Almost surely, 2^222338591 is an apocalyptic number.

222338591 is a deficient number, since it is larger than the sum of its proper divisors (1472593).

222338591 is a wasteful number, since it uses less digits than its factorization.

222338591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472592.

The product of its digits is 25920, while the sum is 35.

The square root of 222338591 is about 14911.0224666184. The cubic root of 222338591 is about 605.8125738788.

The spelling of 222338591 in words is "two hundred twenty-two million, three hundred thirty-eight thousand, five hundred ninety-one".