11221201110220 has 48 divisors (see below), whose sum is σ = 24614391207168. Its totient is φ = 4288907395520.

The previous prime is 11221201110209. The next prime is 11221201110263. The reversal of 11221201110220 is 2201110212211.

It is a junction number, because it is equal to n+sod(n) for n = 11221201110194 and 11221201110203.

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, 12114574 + ... + 13007893.

It is an arithmetic number, because the mean of its divisors is an integer number (512799816816).

Almost surely, 2^{11221201110220} is an apocalyptic number.

11221201110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221201110220 is an abundant number, since it is smaller than the sum of its proper divisors (13393190096948).

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

11221201110220 is a wasteful number, since it uses less digits than its factorization.

11221201110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25123470 (or 25123468 counting only the distinct ones).

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

Adding to 11221201110220 its reverse (2201110212211), we get a palindrome (13422311322431).

The spelling of 11221201110220 in words is "eleven trillion, two hundred twenty-one billion, two hundred one million, one hundred ten thousand, two hundred twenty".