11101211202220 has 48 divisors (see below), whose sum is σ = 24684188030208. Its totient is φ = 4179225600000.

The previous prime is 11101211202217. The next prime is 11101211202241. The reversal of 11101211202220 is 2220211210111.

It is a junction number, because it is equal to n+sod(n) for n = 11101211202194 and 11101211202203.

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 15 ways as a sum of consecutive naturals, for example, 34667845 + ... + 34986595.

It is an arithmetic number, because the mean of its divisors is an integer number (514253917296).

Almost surely, 2^{11101211202220} is an apocalyptic number.

11101211202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101211202220 is an abundant number, since it is smaller than the sum of its proper divisors (13582976827988).

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

11101211202220 is a wasteful number, since it uses less digits than its factorization.

11101211202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421210 (or 421208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11101211202220 its reverse (2220211210111), we get a palindrome (13321422412331).

The spelling of 11101211202220 in words is "eleven trillion, one hundred one billion, two hundred eleven million, two hundred two thousand, two hundred twenty".