221111111112203 has 16 divisors (see below), whose sum is σ = 240524447436000. Its totient is φ = 202042108876800.

The previous prime is 221111111112193. The next prime is 221111111112211. The reversal of 221111111112203 is 302211111111122.

221111111112203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221111111112203 - 2⁴ = 221111111112187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221111111112253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9818198 + ... + 23208171.

It is an arithmetic number, because the mean of its divisors is an integer number (15032777964750).

Almost surely, 2^{221111111112203} is an apocalyptic number.

221111111112203 is a deficient number, since it is larger than the sum of its proper divisors (19413336323797).

221111111112203 is a wasteful number, since it uses less digits than its factorization.

221111111112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33031582.

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 221111111112203 its reverse (302211111111122), we get a palindrome (523322222223325).

The spelling of 221111111112203 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred eleven million, one hundred twelve thousand, two hundred three".