111021221110 has 8 divisors (see below), whose sum is σ = 199838198016. Its totient is φ = 44408488440.

The previous prime is 111021221089. The next prime is 111021221123. The reversal of 111021221110 is 11122120111.

It is a happy number.

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

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, 5551061046 + ... + 5551061065.

It is an arithmetic number, because the mean of its divisors is an integer number (24979774752).

Almost surely, 2^111021221110 is an apocalyptic number.

111021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021221110 is a deficient number, since it is larger than the sum of its proper divisors (88816976906).

111021221110 is a wasteful number, since it uses less digits than its factorization.

111021221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11102122118.

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

Adding to 111021221110 its reverse (11122120111), we get a palindrome (122143341221).

The spelling of 111021221110 in words is "one hundred eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".