3120031122021 has 48 divisors (see below), whose sum is σ = 5127973905600. Its totient is φ = 1879997454720.

The previous prime is 3120031122011. The next prime is 3120031122049. The reversal of 3120031122021 is 1202211300213.

3120031122021 is a `hidden beast` number, since 312 + 0 + 0 + 311 + 2 + 20 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-3120031122021 is a prime.

It is a super-2 number, since 2×3120031122021² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3120031121985 and 3120031122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120031122011) 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 47 ways as a sum of consecutive naturals, for example, 2911096 + ... + 3835953.

It is an arithmetic number, because the mean of its divisors is an integer number (106832789700).

Almost surely, 2^{3120031122021} is an apocalyptic number.

It is an amenable number.

3120031122021 is a deficient number, since it is larger than the sum of its proper divisors (2007942783579).

3120031122021 is a wasteful number, since it uses less digits than its factorization.

3120031122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747248 (or 6747236 counting only the distinct ones).

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

Adding to 3120031122021 its reverse (1202211300213), we get a palindrome (4322242422234).

The spelling of 3120031122021 in words is "three trillion, one hundred twenty billion, thirty-one million, one hundred twenty-two thousand, twenty-one".