111201001100 has 72 divisors (see below), whose sum is σ = 276760390368. Its totient is φ = 37990310400.

The previous prime is 111201001061. The next prime is 111201001133. The reversal of 111201001100 is 1100102111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85967 + ... + 479366.

Almost surely, 2^111201001100 is an apocalyptic number.

111201001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201001100 is an abundant number, since it is smaller than the sum of its proper divisors (165559389268).

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

111201001100 is a wasteful number, since it uses less digits than its factorization.

111201001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565635 (or 565628 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111201001100 its reverse (1100102111), we get a palindrome (112301103211).

The spelling of 111201001100 in words is "one hundred eleven billion, two hundred one million, one thousand, one hundred".