221102330023 has 4 divisors (see below), whose sum is σ = 221105010528. Its totient is φ = 221099649520.

The previous prime is 221102330017. The next prime is 221102330039. The reversal of 221102330023 is 320033201122.

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-221102330023 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 (221102330063) 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, 1212463 + ... + 1382848.

It is an arithmetic number, because the mean of its divisors is an integer number (55276252632).

Almost surely, 2^221102330023 is an apocalyptic number.

221102330023 is a deficient number, since it is larger than the sum of its proper divisors (2680505).

221102330023 is an equidigital number, since it uses as much as digits as its factorization.

221102330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680504.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 221102330023 its reverse (320033201122), we get a palindrome (541135531145).

The spelling of 221102330023 in words is "two hundred twenty-one billion, one hundred two million, three hundred thirty thousand, twenty-three".