11100221020220 has 48 divisors (see below), whose sum is σ = 24810891452928. Its totient is φ = 4157027619840.

The previous prime is 11100221020211. The next prime is 11100221020307. The reversal of 11100221020220 is 2202012200111.

It is a junction number, because it is equal to n+sod(n) for n = 11100221020195 and 11100221020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85400267 + ... + 85530146.

It is an arithmetic number, because the mean of its divisors is an integer number (516893571936).

Almost surely, 2^{11100221020220} is an apocalyptic number.

11100221020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100221020220 is an abundant number, since it is smaller than the sum of its proper divisors (13710670432708).

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

11100221020220 is a wasteful number, since it uses less digits than its factorization.

11100221020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170930630 (or 170930628 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11100221020220 its reverse (2202012200111), we get a palindrome (13302233220331).

The spelling of 11100221020220 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, twenty thousand, two hundred twenty".