3122001021 has 16 divisors (see below), whose sum is σ = 4195681280. Its totient is φ = 2064849840.

The previous prime is 3122001011. The next prime is 3122001083. The reversal of 3122001021 is 1201002213.

It is not a de Polignac number, because 3122001021 - 2⁶ = 3122000957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122000988 and 3122001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122001011) 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 15 ways as a sum of consecutive naturals, for example, 1112406 + ... + 1115208.

It is an arithmetic number, because the mean of its divisors is an integer number (262230080).

Almost surely, 2^3122001021 is an apocalyptic number.

It is an amenable number.

3122001021 is a deficient number, since it is larger than the sum of its proper divisors (1073680259).

3122001021 is a wasteful number, since it uses less digits than its factorization.

3122001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3122001021 is about 55874.8693152834. The cubic root of 3122001021 is about 1461.5410358032.

Adding to 3122001021 its reverse (1201002213), we get a palindrome (4323003234).

The spelling of 3122001021 in words is "three billion, one hundred twenty-two million, one thousand, twenty-one".