222002749 has 4 divisors (see below), whose sum is σ = 229164160. Its totient is φ = 214841340.

The previous prime is 222002717. The next prime is 222002773. The reversal of 222002749 is 947200222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222002749 - 2⁵ = 222002717 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 (222002149) 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 3 ways as a sum of consecutive naturals, for example, 3580659 + ... + 3580720.

It is an arithmetic number, because the mean of its divisors is an integer number (57291040).

Almost surely, 2^222002749 is an apocalyptic number.

It is an amenable number.

222002749 is a deficient number, since it is larger than the sum of its proper divisors (7161411).

222002749 is an equidigital number, since it uses as much as digits as its factorization.

222002749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161410.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 222002749 is about 14899.7566758655. The cubic root of 222002749 is about 605.5073939395.

The spelling of 222002749 in words is "two hundred twenty-two million, two thousand, seven hundred forty-nine".