222407198 has 16 divisors (see below), whose sum is σ = 378183120. Its totient is φ = 97246656.

The previous prime is 222407191. The next prime is 222407201. The reversal of 222407198 is 891704222.

It is a super-2 number, since 2×222407198² = 98929923444422408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222407191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224615 + ... + 225602.

It is an arithmetic number, because the mean of its divisors is an integer number (23636445).

Almost surely, 2^222407198 is an apocalyptic number.

222407198 is a deficient number, since it is larger than the sum of its proper divisors (155775922).

222407198 is a wasteful number, since it uses less digits than its factorization.

222407198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450251.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 222407198 is about 14913.3228356393. The cubic root of 222407198 is about 605.8748793154.

The spelling of 222407198 in words is "two hundred twenty-two million, four hundred seven thousand, one hundred ninety-eight".