221102002220111 has 16 divisors (see below), whose sum is σ = 233088583161600. Its totient is φ = 209150394824448.

The previous prime is 221102002220087. The next prime is 221102002220131. The reversal of 221102002220111 is 111022200201122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221102002220111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221102002220111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102002220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144685180 + ... + 1144878318.

It is an arithmetic number, because the mean of its divisors is an integer number (14568036447600).

Almost surely, 2^{221102002220111} is an apocalyptic number.

221102002220111 is a deficient number, since it is larger than the sum of its proper divisors (11986580941489).

221102002220111 is a wasteful number, since it uses less digits than its factorization.

221102002220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283358.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221102002220111 its reverse (111022200201122), we get a palindrome (332124202421233).

The spelling of 221102002220111 in words is "two hundred twenty-one trillion, one hundred two billion, two million, two hundred twenty thousand, one hundred eleven".