3122132121 has 30 divisors (see below), whose sum is σ = 4765542650. Its totient is φ = 2037019104.

The previous prime is 3122132107. The next prime is 3122132147. The reversal of 3122132121 is 1212312213.

It can be written as a sum of positive squares in only one way, i.e., 3117658896 + 4473225 = 55836^2 + 2115^2 .

It is not a de Polignac number, because 3122132121 - 2¹³ = 3122123929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122132094 and 3122132103.

It is not an unprimeable number, because it can be changed into a prime (3122132521) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 170205 + ... + 187653.

Almost surely, 2^3122132121 is an apocalyptic number.

It is an amenable number.

3122132121 is a deficient number, since it is larger than the sum of its proper divisors (1643410529).

3122132121 is an equidigital number, since it uses as much as digits as its factorization.

3122132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17555 (or 17499 counting only the distinct ones).

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

The square root of 3122132121 is about 55876.0424600741. The cubic root of 3122132121 is about 1461.5614933395.

Adding to 3122132121 its reverse (1212312213), we get a palindrome (4334444334).

The spelling of 3122132121 in words is "three billion, one hundred twenty-two million, one hundred thirty-two thousand, one hundred twenty-one".