111021201100 has 18 divisors (see below), whose sum is σ = 240916006604. Its totient is φ = 44408480400.

The previous prime is 111021201097. The next prime is 111021201121. The reversal of 111021201100 is 1102120111.

111021201100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555105906 + ... + 555106105.

Almost surely, 2^111021201100 is an apocalyptic number.

111021201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021201100 is an abundant number, since it is smaller than the sum of its proper divisors (129894805504).

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

111021201100 is a wasteful number, since it uses less digits than its factorization.

111021201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110212025 (or 1110212018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111021201100 its reverse (1102120111), we get a palindrome (112123321211).

The spelling of 111021201100 in words is "one hundred eleven billion, twenty-one million, two hundred one thousand, one hundred".