12001010202121 has 8 divisors (see below), whose sum is σ = 12232012093704. Its totient is φ = 11770177486080.

The previous prime is 12001010202109. The next prime is 12001010202151. The reversal of 12001010202121 is 12120201010021.

It can be written as a sum of positive squares in 4 ways, for example, as 2240784455625 + 9760225746496 = 1496925^2 + 3124136^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001010202121 - 2¹⁵ = 12001010169353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001010202151) 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 in 7 ways as a sum of consecutive naturals, for example, 42150640 + ... + 42434401.

It is an arithmetic number, because the mean of its divisors is an integer number (1529001511713).

Almost surely, 2^{12001010202121} is an apocalyptic number.

It is an amenable number.

12001010202121 is a deficient number, since it is larger than the sum of its proper divisors (231001891583).

12001010202121 is an equidigital number, since it uses as much as digits as its factorization.

12001010202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84587771.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001010202121 its reverse (12120201010021), we get a palindrome (24121211212142).

The spelling of 12001010202121 in words is "twelve trillion, one billion, ten million, two hundred two thousand, one hundred twenty-one".