3111222213 has 48 divisors (see below), whose sum is σ = 5144630400. Its totient is φ = 1793404800.

The previous prime is 3111222181. The next prime is 3111222227. The reversal of 3111222213 is 3122221113.

It is not a de Polignac number, because 3111222213 - 2⁵ = 3111222181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111222313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 408363 + ... + 415911.

It is an arithmetic number, because the mean of its divisors is an integer number (107179800).

Almost surely, 2^3111222213 is an apocalyptic number.

3111222213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3111222213 is a deficient number, since it is larger than the sum of its proper divisors (2033408187).

3111222213 is a wasteful number, since it uses less digits than its factorization.

3111222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770 (or 7767 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3111222213 is about 55778.3310345514. The cubic root of 3111222213 is about 1459.8570906909.

Adding to 3111222213 its reverse (3122221113), we get a palindrome (6233443326).

The spelling of 3111222213 in words is "three billion, one hundred eleven million, two hundred twenty-two thousand, two hundred thirteen".