2001212002073 has 2 divisors, whose sum is σ = 2001212002074. Its totient is φ = 2001212002072.

The previous prime is 2001212001979. The next prime is 2001212002103. The reversal of 2001212002073 is 3702002121002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1990221205504 + 10990796569 = 1410752^2 + 104837^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001212002073 - 2³⁰ = 2000138260249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001212002873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000606001036 + 1000606001037.

It is an arithmetic number, because the mean of its divisors is an integer number (1000606001037).

Almost surely, 2^{2001212002073} is an apocalyptic number.

It is an amenable number.

2001212002073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001212002073 is an equidigital number, since it uses as much as digits as its factorization.

2001212002073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 2001212002073 its reverse (3702002121002), we get a palindrome (5703214123075).

The spelling of 2001212002073 in words is "two trillion, one billion, two hundred twelve million, two thousand, seventy-three".