111221201110 has 32 divisors (see below), whose sum is σ = 200851912800. Its totient is φ = 44343307008.

The previous prime is 111221201107. The next prime is 111221201141. The reversal of 111221201110 is 11102122111.

It is a happy number.

111221201110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11976529 + ... + 11985811.

It is an arithmetic number, because the mean of its divisors is an integer number (6276622275).

Almost surely, 2^111221201110 is an apocalyptic number.

111221201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111221201110 is a deficient number, since it is larger than the sum of its proper divisors (89630711690).

111221201110 is a wasteful number, since it uses less digits than its factorization.

111221201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111221201110 its reverse (11102122111), we get a palindrome (122323323221).

The spelling of 111221201110 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred one thousand, one hundred ten".