222100145 has 16 divisors (see below), whose sum is σ = 274060800. Its totient is φ = 172705344.

The previous prime is 222100129. The next prime is 222100169. The reversal of 222100145 is 541001222.

It is a cyclic number.

It is not a de Polignac number, because 222100145 - 2⁴ = 222100129 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31844 + ... + 38186.

It is an arithmetic number, because the mean of its divisors is an integer number (17128800).

Almost surely, 2^222100145 is an apocalyptic number.

It is an amenable number.

222100145 is a deficient number, since it is larger than the sum of its proper divisors (51960655).

222100145 is a wasteful number, since it uses less digits than its factorization.

222100145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6544.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 222100145 is about 14903.0246929944. The cubic root of 222100145 is about 605.5959294438.

Adding to 222100145 its reverse (541001222), we get a palindrome (763101367).

The spelling of 222100145 in words is "two hundred twenty-two million, one hundred thousand, one hundred forty-five".