12001001022101 has 32 divisors (see below), whose sum is σ = 14865660918528. Its totient is φ = 9434294622720.

The previous prime is 12001001022089. The next prime is 12001001022103. The reversal of 12001001022101 is 10122010010021.

12001001022101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12001001022101 - 2²² = 12000996827797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001001022103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8145545 + ... + 9505361.

It is an arithmetic number, because the mean of its divisors is an integer number (464551903704).

Almost surely, 2^{12001001022101} is an apocalyptic number.

It is an amenable number.

12001001022101 is a deficient number, since it is larger than the sum of its proper divisors (2864659896427).

12001001022101 is a wasteful number, since it uses less digits than its factorization.

12001001022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360461.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001001022101 its reverse (10122010010021), we get a palindrome (22123011032122).

The spelling of 12001001022101 in words is "twelve trillion, one billion, one million, twenty-two thousand, one hundred one".