11212221200022 has 96 divisors (see below), whose sum is σ = 25375689050400. Its totient is φ = 3574326196224.

The previous prime is 11212221199981. The next prime is 11212221200051. The reversal of 11212221200022 is 22000212221211.

It is a happy number.

11212221200022 is a `hidden beast` number, since 11 + 212 + 221 + 200 + 0 + 22 = 666.

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 = 11212221199968 and 11212221200004.

It is a congruent number.

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, 519338004 + ... + 519359592.

It is an arithmetic number, because the mean of its divisors is an integer number (264330094275).

Almost surely, 2^{11212221200022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212221200022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12687844525200).

11212221200022 is an abundant number, since it is smaller than the sum of its proper divisors (14163467850378).

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

11212221200022 is a wasteful number, since it uses less digits than its factorization.

11212221200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34910 (or 34907 counting only the distinct ones).

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

Adding to 11212221200022 its reverse (22000212221211), we get a palindrome (33212433421233).

The spelling of 11212221200022 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-one million, two hundred thousand, twenty-two".