111221022020110 has 32 divisors (see below), whose sum is σ = 208911225390912. Its totient is φ = 42552269971200.

The previous prime is 111221022020047. The next prime is 111221022020167. The reversal of 111221022020110 is 11020220122111.

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, 5290599 + ... + 15825058.

It is an arithmetic number, because the mean of its divisors is an integer number (6528475793466).

Almost surely, 2^{111221022020110} is an apocalyptic number.

111221022020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111221022020110 is a deficient number, since it is larger than the sum of its proper divisors (97690203370802).

111221022020110 is a wasteful number, since it uses less digits than its factorization.

111221022020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21138588.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111221022020110 its reverse (11020220122111), we get a palindrome (122241242142221).

The spelling of 111221022020110 in words is "one hundred eleven trillion, two hundred twenty-one billion, twenty-two million, twenty thousand, one hundred ten".