312022066 has 16 divisors (see below), whose sum is σ = 498607200. Its totient is φ = 146017728.

The previous prime is 312022033. The next prime is 312022069. The reversal of 312022066 is 660220213.

It is a happy number.

It is a super-3 number, since 3×312022066³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (312022069) 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 7 ways as a sum of consecutive naturals, for example, 46311 + ... + 52618.

It is an arithmetic number, because the mean of its divisors is an integer number (31162950).

Almost surely, 2^312022066 is an apocalyptic number.

312022066 is a deficient number, since it is larger than the sum of its proper divisors (186585134).

312022066 is a wasteful number, since it uses less digits than its factorization.

312022066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99033.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 312022066 is about 17664.1463422380. The cubic root of 312022066 is about 678.2582776429.

Adding to 312022066 its reverse (660220213), we get a palindrome (972242279).

The spelling of 312022066 in words is "three hundred twelve million, twenty-two thousand, sixty-six".