12001200201021 has 32 divisors (see below), whose sum is σ = 16087716570240. Its totient is φ = 7957870389504.

The previous prime is 12001200200989. The next prime is 12001200201127. The reversal of 12001200201021 is 12010200210021.

It is not a de Polignac number, because 12001200201021 - 2⁵ = 12001200200989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001200200988 and 12001200201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001200201521) 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, 1161438771 + ... + 1161449103.

It is an arithmetic number, because the mean of its divisors is an integer number (502741142820).

Almost surely, 2^{12001200201021} is an apocalyptic number.

It is an amenable number.

12001200201021 is a deficient number, since it is larger than the sum of its proper divisors (4086516369219).

12001200201021 is a wasteful number, since it uses less digits than its factorization.

12001200201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13245.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001200201021 its reverse (12010200210021), we get a palindrome (24011400411042).

The spelling of 12001200201021 in words is "twelve trillion, one billion, two hundred million, two hundred one thousand, twenty-one".