221103230011 has 4 divisors (see below), whose sum is σ = 221582847024. Its totient is φ = 220623613000.

The previous prime is 221103229969. The next prime is 221103230081. The reversal of 221103230011 is 110032301122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110032301122 = 2 ⋅55016150561.

It is a cyclic number.

It is not a de Polignac number, because 221103230011 - 2¹⁹ = 221102705723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221103230081) 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, 239807815 + ... + 239808736.

It is an arithmetic number, because the mean of its divisors is an integer number (55395711756).

Almost surely, 2^221103230011 is an apocalyptic number.

221103230011 is a deficient number, since it is larger than the sum of its proper divisors (479617013).

221103230011 is an equidigital number, since it uses as much as digits as its factorization.

221103230011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479617012.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221103230011 its reverse (110032301122), we get a palindrome (331135531133).

The spelling of 221103230011 in words is "two hundred twenty-one billion, one hundred three million, two hundred thirty thousand, eleven".