2001333022231 has 4 divisors (see below), whose sum is σ = 2001338393392. Its totient is φ = 2001327651072.

The previous prime is 2001333022201. The next prime is 2001333022237. The reversal of 2001333022231 is 1322203331002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001333022231 - 2¹⁹ = 2001332497943 is a prime.

It is a super-2 number, since 2×2001333022231² (a number of 25 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 (2001333022237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081355 + ... + 2886988.

It is an arithmetic number, because the mean of its divisors is an integer number (500334598348).

Almost surely, 2^{2001333022231} is an apocalyptic number.

2001333022231 is a deficient number, since it is larger than the sum of its proper divisors (5371161).

2001333022231 is an equidigital number, since it uses as much as digits as its factorization.

2001333022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371160.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2001333022231 its reverse (1322203331002), we get a palindrome (3323536353233).

The spelling of 2001333022231 in words is "two trillion, one billion, three hundred thirty-three million, twenty-two thousand, two hundred thirty-one".