221000111023 has 8 divisors (see below), whose sum is σ = 222893956800. Its totient is φ = 219114342048.

The previous prime is 221000110999. The next prime is 221000111039. The reversal of 221000111023 is 320111000122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221000111023 is a prime.

It is a super-2 number, since 2×221000111023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221000110994 and 221000111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000111053) 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, 1964236 + ... + 2073697.

It is an arithmetic number, because the mean of its divisors is an integer number (27861744600).

Almost surely, 2^221000111023 is an apocalyptic number.

221000111023 is a deficient number, since it is larger than the sum of its proper divisors (1893845777).

221000111023 is a wasteful number, since it uses less digits than its factorization.

221000111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038401.

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

Adding to 221000111023 its reverse (320111000122), we get a palindrome (541111111145).

The spelling of 221000111023 in words is "two hundred twenty-one billion, one hundred eleven thousand, twenty-three".