3012121001 has 2 divisors, whose sum is σ = 3012121002. Its totient is φ = 3012121000.

The previous prime is 3012120961. The next prime is 3012121019. The reversal of 3012121001 is 1001212103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1656408601 + 1355712400 = 40699^2 + 36820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3012121001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3012121901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1506060500 + 1506060501.

It is an arithmetic number, because the mean of its divisors is an integer number (1506060501).

Almost surely, 2^3012121001 is an apocalyptic number.

It is an amenable number.

3012121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3012121001 is an equidigital number, since it uses as much as digits as its factorization.

3012121001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3012121001 is about 54882.7933053703. The cubic root of 3012121001 is about 1444.1893500274.

Adding to 3012121001 its reverse (1001212103), we get a palindrome (4013333104).

The spelling of 3012121001 in words is "three billion, twelve million, one hundred twenty-one thousand, one".