221110112222211 has 16 divisors (see below), whose sum is σ = 301939045484544. Its totient is φ = 143861729704704.

The previous prime is 221110112222173. The next prime is 221110112222221. The reversal of 221110112222211 is 112222211011122.

It is a de Polignac number, because none of the positive numbers 2^k-221110112222211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221110112222221) 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, 2221135531 + ... + 2221235076.

It is an arithmetic number, because the mean of its divisors is an integer number (18871190342784).

Almost surely, 2^{221110112222211} is an apocalyptic number.

221110112222211 is a deficient number, since it is larger than the sum of its proper divisors (80828933262333).

221110112222211 is a wasteful number, since it uses less digits than its factorization.

221110112222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442371010.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 221110112222211 its reverse (112222211011122), we get a palindrome (333332323233333).

The spelling of 221110112222211 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred twelve million, two hundred twenty-two thousand, two hundred eleven".