111221323140 has 48 divisors (see below), whose sum is σ = 311448336192. Its totient is φ = 29656292736.

The previous prime is 111221323097. The next prime is 111221323151. The reversal of 111221323140 is 41323122111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621247 + ... + 779993.

It is an arithmetic number, because the mean of its divisors is an integer number (6488507004).

Almost surely, 2^111221323140 is an apocalyptic number.

111221323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221323140 is an abundant number, since it is smaller than the sum of its proper divisors (200227013052).

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

111221323140 is a wasteful number, since it uses less digits than its factorization.

111221323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170436 (or 170434 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111221323140 its reverse (41323122111), we get a palindrome (152544445251).

The spelling of 111221323140 in words is "one hundred eleven billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred forty".