111202110001220 has 96 divisors (see below), whose sum is σ = 267668972954880. Its totient is φ = 38014612070400.

The previous prime is 111202110001133. The next prime is 111202110001247. The reversal of 111202110001220 is 22100011202111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 111202110001195 and 111202110001204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65378516 + ... + 67057844.

It is an arithmetic number, because the mean of its divisors is an integer number (2788218468280).

Almost surely, 2^{111202110001220} is an apocalyptic number.

111202110001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111202110001220 is an abundant number, since it is smaller than the sum of its proper divisors (156466862953660).

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

111202110001220 is a wasteful number, since it uses less digits than its factorization.

111202110001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680733 (or 1680731 counting only the distinct ones).

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

Adding to 111202110001220 its reverse (22100011202111), we get a palindrome (133302121203331).

The spelling of 111202110001220 in words is "one hundred eleven trillion, two hundred two billion, one hundred ten million, one thousand, two hundred twenty".