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222133 = 1911163

222133 has 4 divisors (see below), whose sum is σ = 223488. Its totient is φ = 220780.

The previous prime is 222127. The next prime is 222137. The reversal of 222133 is 331222.

Adding to 222133 its reverse (331222), we get a palindrome (553355).

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331222 = 2165611.

It is a cyclic number.

It is not a de Polignac number, because 222133 - 29 = 221621 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222137) 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 3 ways as a sum of consecutive naturals, for example, 391 + ... + 772.

It is an arithmetic number, because the mean of its divisors is an integer number (55872).

2222133 is an apocalyptic number.

It is an amenable number.

222133 is a deficient number, since it is larger than the sum of its proper divisors (1355).

222133 is a wasteful number, since it uses less digits than its factorization.

222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 72, while the sum is 13.

The square root of 222133 is about 471.3098768326. The cubic root of 222133 is about 60.5625789657.

The spelling of 222133 in words is "two hundred twenty-two thousand, one hundred thirty-three".

Divisors: 1 191 1163 222133