111222001201220 has 96 divisors (see below), whose sum is σ = 287495646133248. Its totient is φ = 35196311596032.

The previous prime is 111222001201211. The next prime is 111222001201319. The reversal of 111222001201220 is 22102100222111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14596112 + ... + 20868408.

It is an arithmetic number, because the mean of its divisors is an integer number (2994746313888).

Almost surely, 2^{111222001201220} is an apocalyptic number.

111222001201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222001201220 is an abundant number, since it is smaller than the sum of its proper divisors (176273644932028).

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

111222001201220 is a wasteful number, since it uses less digits than its factorization.

111222001201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282069 (or 6282067 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111222001201220 its reverse (22102100222111), we get a palindrome (133324101423331).

The spelling of 111222001201220 in words is "one hundred eleven trillion, two hundred twenty-two billion, one million, two hundred one thousand, two hundred twenty".