2001110001223 has 4 divisors (see below), whose sum is σ = 2001123744840. Its totient is φ = 2001096257608.

The previous prime is 2001110001199. The next prime is 2001110001257. The reversal of 2001110001223 is 3221000111002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001110001223 is a prime.

It is a super-2 number, since 2×2001110001223² (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 (2001110002223) 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, 6651040 + ... + 6945397.

It is an arithmetic number, because the mean of its divisors is an integer number (500280936210).

Almost surely, 2^{2001110001223} is an apocalyptic number.

2001110001223 is a deficient number, since it is larger than the sum of its proper divisors (13743617).

2001110001223 is a wasteful number, since it uses less digits than its factorization.

2001110001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13743616.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001110001223 its reverse (3221000111002), we get a palindrome (5222110112225).

The spelling of 2001110001223 in words is "two trillion, one billion, one hundred ten million, one thousand, two hundred twenty-three".