11122220210220 has 576 divisors, whose sum is σ = 42357923951616. Its totient is φ = 2391504445440.

The previous prime is 11122220210191. The next prime is 11122220210261. The reversal of 11122220210220 is 2201202222111.

It is a happy number.

11122220210220 is a `hidden beast` number, since 1 + 1 + 12 + 2 + 220 + 210 + 220 = 666.

11122220210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×11122220210220⁴ (a number of 53 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11122220210193 and 11122220210202.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1718244904 + ... + 1718251376.

It is an arithmetic number, because the mean of its divisors is an integer number (73538062416).

Almost surely, 2^{11122220210220} is an apocalyptic number.

11122220210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11122220210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21178961975808).

11122220210220 is an abundant number, since it is smaller than the sum of its proper divisors (31235703741396).

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

11122220210220 is a wasteful number, since it uses less digits than its factorization.

11122220210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9492 (or 9478 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11122220210220 its reverse (2201202222111), we get a palindrome (13323422432331).

The spelling of 11122220210220 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, two hundred twenty".