2001333222101 has 24 divisors (see below), whose sum is σ = 2250179806464. Its totient is φ = 1773521930880.

The previous prime is 2001333222089. The next prime is 2001333222149. The reversal of 2001333222101 is 1012223331002.

It is not a de Polignac number, because 2001333222101 - 2¹⁸ = 2001332959957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001333222181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5 + ... + 2000666.

It is an arithmetic number, because the mean of its divisors is an integer number (93757491936).

Almost surely, 2^{2001333222101} is an apocalyptic number.

It is an amenable number.

2001333222101 is a deficient number, since it is larger than the sum of its proper divisors (248846584363).

2001333222101 is a wasteful number, since it uses less digits than its factorization.

2001333222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000889 (or 2000870 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2001333222101 its reverse (1012223331002), we get a palindrome (3013556553103).

The spelling of 2001333222101 in words is "two trillion, one billion, three hundred thirty-three million, two hundred twenty-two thousand, one hundred one".