11212342221420 has 144 divisors (see below), whose sum is σ = 34472277665280. Its totient is φ = 2949619817088.

The previous prime is 11212342221419. The next prime is 11212342221439. The reversal of 11212342221420 is 2412224321211.

11212342221420 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 2 + 3 + 422 + 214 + 20 = 666.

11212342221420 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 47 ways as a sum of consecutive naturals, for example, 3385239 + ... + 5821041.

It is an arithmetic number, because the mean of its divisors is an integer number (239390817120).

Almost surely, 2^{11212342221420} is an apocalyptic number.

11212342221420 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 11212342221420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17236138832640).

11212342221420 is an abundant number, since it is smaller than the sum of its proper divisors (23259935443860).

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

11212342221420 is a wasteful number, since it uses less digits than its factorization.

11212342221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436164 (or 2436159 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 11212342221420 its reverse (2412224321211), we get a palindrome (13624566542631).

The spelling of 11212342221420 in words is "eleven trillion, two hundred twelve billion, three hundred forty-two million, two hundred twenty-one thousand, four hundred twenty".