222991363 has 8 divisors (see below), whose sum is σ = 269838432. Its totient is φ = 179892096.

The previous prime is 222991361. The next prime is 222991387. The reversal of 222991363 is 363199222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222991363 - 2¹ = 222991361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222991361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936820 + ... + 937057.

It is an arithmetic number, because the mean of its divisors is an integer number (33729804).

Almost surely, 2^222991363 is an apocalyptic number.

222991363 is a deficient number, since it is larger than the sum of its proper divisors (46847069).

222991363 is a wasteful number, since it uses less digits than its factorization.

222991363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873901.

The product of its digits is 34992, while the sum is 37.

The square root of 222991363 is about 14932.8953321183. The cubic root of 222991363 is about 606.4048703713.

The spelling of 222991363 in words is "two hundred twenty-two million, nine hundred ninety-one thousand, three hundred sixty-three".