2001321133201 has 16 divisors (see below), whose sum is σ = 2163515200000. Its totient is φ = 1840306962240.

The previous prime is 2001321133183. The next prime is 2001321133241. The reversal of 2001321133201 is 1023311231002.

It is a cyclic number.

It is not a de Polignac number, because 2001321133201 - 2²⁵ = 2001287578769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001321133241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29076175 + ... + 29144923.

It is an arithmetic number, because the mean of its divisors is an integer number (135219700000).

Almost surely, 2^{2001321133201} is an apocalyptic number.

It is an amenable number.

2001321133201 is a deficient number, since it is larger than the sum of its proper divisors (162194066799).

2001321133201 is a wasteful number, since it uses less digits than its factorization.

2001321133201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77296.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2001321133201 its reverse (1023311231002), we get a palindrome (3024632364203).

The spelling of 2001321133201 in words is "two trillion, one billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred one".