2001233212111 has 8 divisors (see below), whose sum is σ = 2386563830784. Its totient is φ = 1640762633400.

The previous prime is 2001233212093. The next prime is 2001233212117. The reversal of 2001233212111 is 1112123321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001233212111 - 2²⁷ = 2001098994383 is a prime.

It is a super-2 number, since 2×2001233212111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001233212117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6215009815 + ... + 6215010136.

It is an arithmetic number, because the mean of its divisors is an integer number (298320478848).

Almost surely, 2^{2001233212111} is an apocalyptic number.

2001233212111 is a deficient number, since it is larger than the sum of its proper divisors (385330618673).

2001233212111 is a wasteful number, since it uses less digits than its factorization.

2001233212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12430019981.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2001233212111 its reverse (1112123321002), we get a palindrome (3113356533113).

The spelling of 2001233212111 in words is "two trillion, one billion, two hundred thirty-three million, two hundred twelve thousand, one hundred eleven".