12021001011201 has 48 divisors (see below), whose sum is σ = 20266689530304. Its totient is φ = 6281488354176.

The previous prime is 12021001011191. The next prime is 12021001011203. The reversal of 12021001011201 is 10211010012021.

It is not a de Polignac number, because 12021001011201 - 2¹⁵ = 12021000978433 is a prime.

It is a super-2 number, since 2×12021001011201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021001011203) 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 47 ways as a sum of consecutive naturals, for example, 29190030 + ... + 29598983.

It is an arithmetic number, because the mean of its divisors is an integer number (422222698548).

Almost surely, 2^{12021001011201} is an apocalyptic number.

It is an amenable number.

12021001011201 is a deficient number, since it is larger than the sum of its proper divisors (8245688519103).

12021001011201 is a wasteful number, since it uses less digits than its factorization.

12021001011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58789150 (or 58789143 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12021001011201 its reverse (10211010012021), we get a palindrome (22232011023222).

The spelling of 12021001011201 in words is "twelve trillion, twenty-one billion, one million, eleven thousand, two hundred one".