111222110121010 has 64 divisors (see below), whose sum is σ = 228999118118400. Its totient is φ = 38100076185600.

The previous prime is 111222110120987. The next prime is 111222110121011. The reversal of 111222110121010 is 10121011222111.

It is not an unprimeable number, because it can be changed into a prime (111222110121011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 970475691 + ... + 970590289.

It is an arithmetic number, because the mean of its divisors is an integer number (3578111220600).

Almost surely, 2^{111222110121010} is an apocalyptic number.

111222110121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222110121010 is an abundant number, since it is smaller than the sum of its proper divisors (117777007997390).

111222110121010 is a wasteful number, since it uses less digits than its factorization.

111222110121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126571.

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

Adding to 111222110121010 its reverse (10121011222111), we get a palindrome (121343121343121).

The spelling of 111222110121010 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, ten".