222281903 has 4 divisors (see below), whose sum is σ = 228289560. Its totient is φ = 216274248.

The previous prime is 222281881. The next prime is 222281909. The reversal of 222281903 is 309182222.

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 222281903 - 2¹² = 222277807 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 (222281909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003773 + ... + 3003846.

It is an arithmetic number, because the mean of its divisors is an integer number (57072390).

Almost surely, 2^222281903 is an apocalyptic number.

222281903 is a deficient number, since it is larger than the sum of its proper divisors (6007657).

222281903 is an equidigital number, since it uses as much as digits as its factorization.

222281903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007656.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 222281903 is about 14909.1214697580. The cubic root of 222281903 is about 605.7610830091.

The spelling of 222281903 in words is "two hundred twenty-two million, two hundred eighty-one thousand, nine hundred three".