3012122221121 has 6 divisors (see below), whose sum is σ = 3261647139030. Its totient is φ = 2780420511648.

The previous prime is 3012122221111. The next prime is 3012122221133. The reversal of 3012122221121 is 1211222212103.

It can be written as a sum of positive squares in 3 ways, for example, as 14601338896 + 2997520882225 = 120836^2 + 1731335^2 .

It is not a de Polignac number, because 3012122221121 - 2³⁰ = 3011048479297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012122221093 and 3012122221102.

It is not an unprimeable number, because it can be changed into a prime (3012122221111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8911604036 + ... + 8911604373.

It is an arithmetic number, because the mean of its divisors is an integer number (543607856505).

Almost surely, 2^{3012122221121} is an apocalyptic number.

It is an amenable number.

3012122221121 is a deficient number, since it is larger than the sum of its proper divisors (249524917909).

3012122221121 is a wasteful number, since it uses less digits than its factorization.

3012122221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823208435 (or 17823208422 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 3012122221121 its reverse (1211222212103), we get a palindrome (4223344433224).

The spelling of 3012122221121 in words is "three trillion, twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".