3120201212081 has 2 divisors, whose sum is σ = 3120201212082. Its totient is φ = 3120201212080.

The previous prime is 3120201212077. The next prime is 3120201212111. The reversal of 3120201212081 is 1802121020213.

3120201212081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1751429909056 + 1368771303025 = 1323416^2 + 1169945^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120201212081 - 2² = 3120201212077 is a prime.

It is a super-2 number, since 2×3120201212081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3120201112081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560100606040 + 1560100606041.

It is an arithmetic number, because the mean of its divisors is an integer number (1560100606041).

Almost surely, 2^{3120201212081} is an apocalyptic number.

It is an amenable number.

3120201212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120201212081 is an equidigital number, since it uses as much as digits as its factorization.

3120201212081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 3120201212081 its reverse (1802121020213), we get a palindrome (4922322232294).

The spelling of 3120201212081 in words is "three trillion, one hundred twenty billion, two hundred one million, two hundred twelve thousand, eighty-one".