3122121121 has 16 divisors (see below), whose sum is σ = 3693277440. Its totient is φ = 2582354880.

The previous prime is 3122121109. The next prime is 3122121133. The reversal of 3122121121 is 1211212213.

3122121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3122121109) and next prime (3122121133).

It is not a de Polignac number, because 3122121121 - 2¹¹ = 3122119073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122121095 and 3122121104.

It is not an unprimeable number, because it can be changed into a prime (3122121151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491556 + ... + 497866.

It is an arithmetic number, because the mean of its divisors is an integer number (230829840).

Almost surely, 2^3122121121 is an apocalyptic number.

It is an amenable number.

3122121121 is a deficient number, since it is larger than the sum of its proper divisors (571156319).

3122121121 is a wasteful number, since it uses less digits than its factorization.

3122121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784.

The product of its digits is 48, while the sum is 16.

The square root of 3122121121 is about 55875.9440278193. The cubic root of 3122121121 is about 1461.5597768634.

Adding to 3122121121 its reverse (1211212213), we get a palindrome (4333333334).

The spelling of 3122121121 in words is "three billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".