111002201100 has 216 divisors, whose sum is σ = 398047071968. Its totient is φ = 25345612800.

The previous prime is 111002201077. The next prime is 111002201117. The reversal of 111002201100 is 1102200111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6423672 + ... + 6440928.

Almost surely, 2^111002201100 is an apocalyptic number.

111002201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111002201100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199023535984).

111002201100 is an abundant number, since it is smaller than the sum of its proper divisors (287044870868).

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

111002201100 is a wasteful number, since it uses less digits than its factorization.

111002201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18305 (or 18295 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111002201100 its reverse (1102200111), we get a palindrome (112104401211).

The spelling of 111002201100 in words is "one hundred eleven billion, two million, two hundred one thousand, one hundred".