111001200221200 has 60 divisors (see below), whose sum is σ = 266699958020308. Its totient is φ = 44397221068800.

The previous prime is 111001200221189. The next prime is 111001200221203. The reversal of 111001200221200 is 2122002100111.

It can be written as a sum of positive squares in 6 ways, for example, as 2684144848896 + 108317055372304 = 1638336^2 + 10407548^2 .

It is not an unprimeable number, because it can be changed into a prime (111001200221203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4724421 + ... + 15630820.

Almost surely, 2^{111001200221200} is an apocalyptic number.

111001200221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001200221200 is an abundant number, since it is smaller than the sum of its proper divisors (155698757799108).

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

111001200221200 is a wasteful number, since it uses less digits than its factorization.

111001200221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20368892 (or 20368881 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111001200221200 its reverse (2122002100111), we get a palindrome (113123202321311).

The spelling of 111001200221200 in words is "one hundred eleven trillion, one billion, two hundred million, two hundred twenty-one thousand, two hundred".