3120122130021 has 24 divisors (see below), whose sum is σ = 4856562754680. Its totient is φ = 1918872740736.

The previous prime is 3120122129947. The next prime is 3120122130031. The reversal of 3120122130021 is 1200312210213.

3120122130021 is a `hidden beast` number, since 3 + 120 + 1 + 221 + 300 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 75742745796 + 3044379384225 = 275214^2 + 1744815^2 .

It is not a de Polignac number, because 3120122130021 - 2¹¹ = 3120122127973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3120122129976 and 3120122130003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120122130031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8162466 + ... + 8536163.

It is an arithmetic number, because the mean of its divisors is an integer number (202356781445).

Almost surely, 2^{3120122130021} is an apocalyptic number.

It is an amenable number.

3120122130021 is a deficient number, since it is larger than the sum of its proper divisors (1736440624659).

3120122130021 is a wasteful number, since it uses less digits than its factorization.

3120122130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16700245 (or 16700242 counting only the distinct ones).

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

Adding to 3120122130021 its reverse (1200312210213), we get a palindrome (4320434340234).

The spelling of 3120122130021 in words is "three trillion, one hundred twenty billion, one hundred twenty-two million, one hundred thirty thousand, twenty-one".