12001021121101 has 8 divisors (see below), whose sum is σ = 12053788410080. Its totient is φ = 11948256972432.

The previous prime is 12001021121081. The next prime is 12001021121129. The reversal of 12001021121101 is 10112112010021.

It is a happy number.

12001021121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12001021121101 - 2³¹ = 11998873637453 is a prime.

It is a super-2 number, since 2×12001021121101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001021131101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7046266 + ... + 8582068.

It is an arithmetic number, because the mean of its divisors is an integer number (1506723551260).

Almost surely, 2^{12001021121101} is an apocalyptic number.

It is an amenable number.

12001021121101 is a deficient number, since it is larger than the sum of its proper divisors (52767288979).

12001021121101 is a wasteful number, since it uses less digits than its factorization.

12001021121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570155.

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

Adding to 12001021121101 its reverse (10112112010021), we get a palindrome (22113133131122).

The spelling of 12001021121101 in words is "twelve trillion, one billion, twenty-one million, one hundred twenty-one thousand, one hundred one".