11112211110220 has 24 divisors (see below), whose sum is σ = 25457065453008. Its totient is φ = 4040804040000.

The previous prime is 11112211110149. The next prime is 11112211110229. The reversal of 11112211110220 is 2201111221111.

It is a junction number, because it is equal to n+sod(n) for n = 11112211110194 and 11112211110203.

It is not an unprimeable number, because it can be changed into a prime (11112211110229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25255025031 + ... + 25255025470.

It is an arithmetic number, because the mean of its divisors is an integer number (1060711060542).

Almost surely, 2^{11112211110220} is an apocalyptic number.

11112211110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112211110220 is an abundant number, since it is smaller than the sum of its proper divisors (14344854342788).

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

11112211110220 is a wasteful number, since it uses less digits than its factorization.

11112211110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50510050521 (or 50510050519 counting only the distinct ones).

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

Adding to 11112211110220 its reverse (2201111221111), we get a palindrome (13313322331331).

The spelling of 11112211110220 in words is "eleven trillion, one hundred twelve billion, two hundred eleven million, one hundred ten thousand, two hundred twenty".