1223001166 has 8 divisors (see below), whose sum is σ = 1897760520. Its totient is φ = 590414328.

The previous prime is 1223001163. The next prime is 1223001167. The reversal of 1223001166 is 6611003221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223001161) 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 3 ways as a sum of consecutive naturals, for example, 10543056 + ... + 10543171.

It is an arithmetic number, because the mean of its divisors is an integer number (237220065).

Almost surely, 2^1223001166 is an apocalyptic number.

1223001166 is a deficient number, since it is larger than the sum of its proper divisors (674759354).

1223001166 is a wasteful number, since it uses less digits than its factorization.

1223001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21086258.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1223001166 is about 34971.4335708446. The cubic root of 1223001166 is about 1069.4051971185.

Adding to 1223001166 its reverse (6611003221), we get a palindrome (7834004387).

The spelling of 1223001166 in words is "one billion, two hundred twenty-three million, one thousand, one hundred sixty-six".