221110220101111 has 16 divisors (see below), whose sum is σ = 245458915802496. Its totient is φ = 197499870100000.

The previous prime is 221110220101081. The next prime is 221110220101151. The reversal of 221110220101111 is 111101022011122.

It is a cyclic number.

It is not a de Polignac number, because 221110220101111 - 2³⁹ = 220560464287223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110220101151) 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, 759469345 + ... + 759760426.

It is an arithmetic number, because the mean of its divisors is an integer number (15341182237656).

Almost surely, 2^{221110220101111} is an apocalyptic number.

221110220101111 is a deficient number, since it is larger than the sum of its proper divisors (24348695701385).

221110220101111 is a wasteful number, since it uses less digits than its factorization.

221110220101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519230014.

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

Adding to 221110220101111 its reverse (111101022011122), we get a palindrome (332211242112233).

The spelling of 221110220101111 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty million, one hundred one thousand, one hundred eleven".