11111011102220 has 24 divisors (see below), whose sum is σ = 23333377006800. Its totient is φ = 4444356118592.

The previous prime is 11111011102183. The next prime is 11111011102271. The reversal of 11111011102220 is 2220111011111.

It is a junction number, because it is equal to n+sod(n) for n = 11111011102195 and 11111011102204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105055 + ... + 4841814.

It is an arithmetic number, because the mean of its divisors is an integer number (972224041950).

Almost surely, 2^{11111011102220} is an apocalyptic number.

11111011102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111011102220 is an abundant number, since it is smaller than the sum of its proper divisors (12222365904580).

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

11111011102220 is a wasteful number, since it uses less digits than its factorization.

11111011102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040297 (or 6040295 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11111011102220 its reverse (2220111011111), we get a palindrome (13331122113331).

The spelling of 11111011102220 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred two thousand, two hundred twenty".