12021011011201 has 2 divisors, whose sum is σ = 12021011011202. Its totient is φ = 12021011011200.

The previous prime is 12021011011183. The next prime is 12021011011231. The reversal of 12021011011201 is 10211011012021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11451591360400 + 569419650801 = 3384020^2 + 754599^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021011011201 - 2⁹ = 12021011010689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021011011231) 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, 6010505505600 + 6010505505601.

It is an arithmetic number, because the mean of its divisors is an integer number (6010505505601).

Almost surely, 2^{12021011011201} is an apocalyptic number.

It is an amenable number.

12021011011201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021011011201 is an equidigital number, since it uses as much as digits as its factorization.

12021011011201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12021011011201 its reverse (10211011012021), we get a palindrome (22232022023222).

The spelling of 12021011011201 in words is "twelve trillion, twenty-one billion, eleven million, eleven thousand, two hundred one".