111221102021110 has 16 divisors (see below), whose sum is σ = 200198355678000. Its totient is φ = 44488358132896.

The previous prime is 111221102021077. The next prime is 111221102021111. The reversal of 111221102021110 is 11120201122111.

It is a super-3 number, since 3×111221102021110³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221102021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4529005 + ... + 15586984.

It is an arithmetic number, because the mean of its divisors is an integer number (12512397229875).

Almost surely, 2^{111221102021110} is an apocalyptic number.

111221102021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111221102021110 is a deficient number, since it is larger than the sum of its proper divisors (88977253656890).

111221102021110 is a wasteful number, since it uses less digits than its factorization.

111221102021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20668895.

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

Adding to 111221102021110 its reverse (11120201122111), we get a palindrome (122341303143221).

The spelling of 111221102021110 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred two million, twenty-one thousand, one hundred ten".