111111022040 has 16 divisors (see below), whose sum is σ = 249999799680. Its totient is φ = 44444408800.

The previous prime is 111111022019. The next prime is 111111022081. The reversal of 111111022040 is 40220111111.

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, 1388887736 + ... + 1388887815.

It is an arithmetic number, because the mean of its divisors is an integer number (15624987480).

Almost surely, 2^111111022040 is an apocalyptic number.

111111022040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111022040 is an abundant number, since it is smaller than the sum of its proper divisors (138888777640).

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

111111022040 is a wasteful number, since it uses less digits than its factorization.

111111022040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777775562 (or 2777775558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111111022040 its reverse (40220111111), we get a palindrome (151331133151).

The spelling of 111111022040 in words is "one hundred eleven billion, one hundred eleven million, twenty-two thousand, forty".