111121200440 has 16 divisors (see below), whose sum is σ = 250022701080. Its totient is φ = 44448480160.

The previous prime is 111121200433. The next prime is 111121200469. The reversal of 111121200440 is 44002121111.

111121200440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389014966 + ... + 1389015045.

Almost surely, 2^111121200440 is an apocalyptic number.

111121200440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121200440 is an abundant number, since it is smaller than the sum of its proper divisors (138901500640).

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

111121200440 is a wasteful number, since it uses less digits than its factorization.

111121200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778030022 (or 2778030018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111121200440 its reverse (44002121111), we get a palindrome (155123321551).

The spelling of 111121200440 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred thousand, four hundred forty".