222723198 has 12 divisors (see below), whose sum is σ = 482566968. Its totient is φ = 74241060.

The previous prime is 222723197. The next prime is 222723203. The reversal of 222723198 is 891327222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222723197) 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 5 ways as a sum of consecutive naturals, for example, 6186738 + ... + 6186773.

It is an arithmetic number, because the mean of its divisors is an integer number (40213914).

Almost surely, 2^222723198 is an apocalyptic number.

222723198 is an abundant number, since it is smaller than the sum of its proper divisors (259843770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222723198 is a wasteful number, since it uses less digits than its factorization.

222723198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12373519 (or 12373516 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 222723198 is about 14923.9136288039. The cubic root of 222723198 is about 606.1616893650.

It can be divided in two parts, 2227 and 23198, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 222723198 in words is "two hundred twenty-two million, seven hundred twenty-three thousand, one hundred ninety-eight".