111221221303112 has 64 divisors (see below), whose sum is σ = 227280484638720. Its totient is φ = 50822440962048.

The previous prime is 111221221303099. The next prime is 111221221303117. The reversal of 111221221303112 is 211303122122111.

It is not an unprimeable number, because it can be changed into a prime (111221221303117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67692413 + ... + 69315980.

It is an arithmetic number, because the mean of its divisors is an integer number (3551257572480).

Almost surely, 2^{111221221303112} is an apocalyptic number.

It is an amenable number.

111221221303112 is an abundant number, since it is smaller than the sum of its proper divisors (116059263335608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111221221303112 is a wasteful number, since it uses less digits than its factorization.

111221221303112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137008590 (or 137008586 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 111221221303112 its reverse (211303122122111), we get a palindrome (322524343425223).

The spelling of 111221221303112 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, three hundred three thousand, one hundred twelve".