3121221122 has 8 divisors (see below), whose sum is σ = 4682169036. Its totient is φ = 1560498112.

The previous prime is 3121221121. The next prime is 3121221163. The reversal of 3121221122 is 2211221213.

It can be written as a sum of positive squares in 2 ways, for example, as 2564308321 + 556912801 = 50639^2 + 23599^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3121221122.

It is not an unprimeable number, because it can be changed into a prime (3121221121) 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 3 ways as a sum of consecutive naturals, for example, 15683 + ... + 80550.

Almost surely, 2^3121221122 is an apocalyptic number.

3121221122 is a deficient number, since it is larger than the sum of its proper divisors (1560947914).

3121221122 is a wasteful number, since it uses less digits than its factorization.

3121221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112452.

The product of its digits is 96, while the sum is 17.

The square root of 3121221122 is about 55867.8899010872. The cubic root of 3121221122 is about 1461.4193244059.

Adding to 3121221122 its reverse (2211221213), we get a palindrome (5332442335).

Subtracting from 3121221122 its reverse (2211221213), we obtain a palindrome (909999909).

The spelling of 3121221122 in words is "three billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".