11212211022220 has 48 divisors (see below), whose sum is σ = 25946540595360. Its totient is φ = 4043616708096.

The previous prime is 11212211022169. The next prime is 11212211022251. The reversal of 11212211022220 is 2222011221211.

11212211022220 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 15 ways as a sum of consecutive naturals, for example, 501429385 + ... + 501451744.

It is an arithmetic number, because the mean of its divisors is an integer number (540552929070).

Almost surely, 2^{11212211022220} is an apocalyptic number.

11212211022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212211022220 is an abundant number, since it is smaller than the sum of its proper divisors (14734329573140).

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

11212211022220 is a wasteful number, since it uses less digits than its factorization.

11212211022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002881194 (or 1002881192 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11212211022220 its reverse (2222011221211), we get a palindrome (13434222243431).

The spelling of 11212211022220 in words is "eleven trillion, two hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred twenty".