3120112223021 has 2 divisors, whose sum is σ = 3120112223022. Its totient is φ = 3120112223020.

The previous prime is 3120112222987. The next prime is 3120112223047. The reversal of 3120112223021 is 1203222110213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2970641838025 + 149470384996 = 1723555^2 + 386614^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120112223021 - 2⁶ = 3120112222957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3120112222984 and 3120112223002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120112223051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560056111510 + 1560056111511.

It is an arithmetic number, because the mean of its divisors is an integer number (1560056111511).

Almost surely, 2^{3120112223021} is an apocalyptic number.

It is an amenable number.

3120112223021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120112223021 is an equidigital number, since it uses as much as digits as its factorization.

3120112223021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3120112223021 its reverse (1203222110213), we get a palindrome (4323334333234).

The spelling of 3120112223021 in words is "three trillion, one hundred twenty billion, one hundred twelve million, two hundred twenty-three thousand, twenty-one".