222298987 has 8 divisors (see below), whose sum is σ = 235506096. Its totient is φ = 209106432.

The previous prime is 222298981. The next prime is 222299023. The reversal of 222298987 is 789892222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222298987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222298987.

It is not an unprimeable number, because it can be changed into a prime (222298981) 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, 54348 + ... + 58294.

It is an arithmetic number, because the mean of its divisors is an integer number (29438262).

Almost surely, 2^222298987 is an apocalyptic number.

222298987 is a deficient number, since it is larger than the sum of its proper divisors (13207109).

222298987 is a wasteful number, since it uses less digits than its factorization.

222298987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277.

The product of its digits is 580608, while the sum is 49.

The square root of 222298987 is about 14909.6943965998. The cubic root of 222298987 is about 605.7766016772.

It can be divided in two parts, 222 and 298987, that added together give a square (299209 = 547²).

The spelling of 222298987 in words is "two hundred twenty-two million, two hundred ninety-eight thousand, nine hundred eighty-seven".