12001201021896 has 32 divisors (see below), whose sum is σ = 31767885059040. Its totient is φ = 3765082673408.

The previous prime is 12001201021889. The next prime is 12001201021897. The reversal of 12001201021896 is 69812010210021.

It is not an unprimeable number, because it can be changed into a prime (12001201021897) 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, 14707353786 + ... + 14707354601.

It is an arithmetic number, because the mean of its divisors is an integer number (992746408095).

Almost surely, 2^{12001201021896} is an apocalyptic number.

It is an amenable number.

12001201021896 is an abundant number, since it is smaller than the sum of its proper divisors (19766684037144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001201021896 is a wasteful number, since it uses less digits than its factorization.

12001201021896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29414708413 (or 29414708409 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The spelling of 12001201021896 in words is "twelve trillion, one billion, two hundred one million, twenty-one thousand, eight hundred ninety-six".