221100111110 has 8 divisors (see below), whose sum is σ = 397980200016. Its totient is φ = 88440044440.

The previous prime is 221100111097. The next prime is 221100111157. The reversal of 221100111110 is 11111001122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221100111091 and 221100111100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055005546 + ... + 11055005565.

It is an arithmetic number, because the mean of its divisors is an integer number (49747525002).

Almost surely, 2^221100111110 is an apocalyptic number.

221100111110 is a deficient number, since it is larger than the sum of its proper divisors (176880088906).

221100111110 is a wasteful number, since it uses less digits than its factorization.

221100111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22110011118.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 221100111110 its reverse (11111001122), we get a palindrome (232211112232).

The spelling of 221100111110 in words is "two hundred twenty-one billion, one hundred million, one hundred eleven thousand, one hundred ten".