2001223332133 has 4 divisors (see below), whose sum is σ = 2001226247820. Its totient is φ = 2001220416448.

The previous prime is 2001223332091. The next prime is 2001223332167. The reversal of 2001223332133 is 3312333221002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 654548957764 + 1346674374369 = 809042^2 + 1160463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001223332133 - 2¹³ = 2001223323941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001223332098 and 2001223332107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001223312133) 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, 200541 + ... + 2010637.

It is an arithmetic number, because the mean of its divisors is an integer number (500306561955).

Almost surely, 2^{2001223332133} is an apocalyptic number.

It is an amenable number.

2001223332133 is a deficient number, since it is larger than the sum of its proper divisors (2915687).

2001223332133 is a wasteful number, since it uses less digits than its factorization.

2001223332133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915686.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 2001223332133 its reverse (3312333221002), we get a palindrome (5313556553135).

The spelling of 2001223332133 in words is "two trillion, one billion, two hundred twenty-three million, three hundred thirty-two thousand, one hundred thirty-three".