111001221010220 has 12 divisors (see below), whose sum is σ = 233102564121504. Its totient is φ = 44400488404080.

The previous prime is 111001221010219. The next prime is 111001221010237. The reversal of 111001221010220 is 22010122100111.

It is a junction number, because it is equal to n+sod(n) for n = 111001221010195 and 111001221010204.

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, 2775030525236 + ... + 2775030525275.

It is an arithmetic number, because the mean of its divisors is an integer number (19425213676792).

Almost surely, 2^{111001221010220} is an apocalyptic number.

111001221010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001221010220 is an abundant number, since it is smaller than the sum of its proper divisors (122101343111284).

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

111001221010220 is a wasteful number, since it uses less digits than its factorization.

111001221010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550061050520 (or 5550061050518 counting only the distinct ones).

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

Adding to 111001221010220 its reverse (22010122100111), we get a palindrome (133011343110331).

The spelling of 111001221010220 in words is "one hundred eleven trillion, one billion, two hundred twenty-one million, ten thousand, two hundred twenty".