3112043221 has 16 divisors (see below), whose sum is σ = 3830980608. Its totient is φ = 2469178800.

The previous prime is 3112043219. The next prime is 3112043237. The reversal of 3112043221 is 1223402113.

It is a happy number.

It is not a de Polignac number, because 3112043221 - 2¹ = 3112043219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112043261) by changing a digit.

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, 306775 + ... + 316756.

It is an arithmetic number, because the mean of its divisors is an integer number (239436288).

Almost surely, 2^3112043221 is an apocalyptic number.

3112043221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3112043221 is a deficient number, since it is larger than the sum of its proper divisors (718937387).

3112043221 is a wasteful number, since it uses less digits than its factorization.

3112043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623592.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3112043221 is about 55785.6901095613. The cubic root of 3112043221 is about 1459.9854913489.

Adding to 3112043221 its reverse (1223402113), we get a palindrome (4335445334).

The spelling of 3112043221 in words is "three billion, one hundred twelve million, forty-three thousand, two hundred twenty-one".