11121221110220 has 24 divisors (see below), whose sum is σ = 25151069280624. Its totient is φ = 4106297025216.

The previous prime is 11121221110217. The next prime is 11121221110249. The reversal of 11121221110220 is 2201112212111.

11121221110220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 21386963414 + ... + 21386963933.

It is an arithmetic number, because the mean of its divisors is an integer number (1047961220026).

Almost surely, 2^{11121221110220} is an apocalyptic number.

11121221110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121221110220 is an abundant number, since it is smaller than the sum of its proper divisors (14029848170404).

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

11121221110220 is a wasteful number, since it uses less digits than its factorization.

11121221110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42773927369 (or 42773927367 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121221110220 its reverse (2201112212111), we get a palindrome (13322333322331).

The spelling of 11121221110220 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand, two hundred twenty".