3113022221 has 4 divisors (see below), whose sum is σ = 3113887452. Its totient is φ = 3112156992.

The previous prime is 3113022217. The next prime is 3113022223. The reversal of 3113022221 is 1222203113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472192900 + 2640829321 = 21730^2 + 51389^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113022221 - 2² = 3113022217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3113022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113022223) 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 3 ways as a sum of consecutive naturals, for example, 427196 + ... + 434421.

It is an arithmetic number, because the mean of its divisors is an integer number (778471863).

Almost surely, 2^3113022221 is an apocalyptic number.

It is an amenable number.

3113022221 is a deficient number, since it is larger than the sum of its proper divisors (865231).

3113022221 is an equidigital number, since it uses as much as digits as its factorization.

3113022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865230.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3113022221 is about 55794.4640712679. The cubic root of 3113022221 is about 1460.1385714788.

Adding to 3113022221 its reverse (1222203113), we get a palindrome (4335225334).

The spelling of 3113022221 in words is "three billion, one hundred thirteen million, twenty-two thousand, two hundred twenty-one".