11200022221212 has 288 divisors, whose sum is σ = 33404711558400. Its totient is φ = 3126953548800.

The previous prime is 11200022221181. The next prime is 11200022221247. The reversal of 11200022221212 is 21212222000211.

It is a happy number.

11200022221212 is a `hidden beast` number, since 11 + 200 + 0 + 22 + 221 + 212 = 666.

11200022221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 684547912 + ... + 684564272.

It is an arithmetic number, because the mean of its divisors is an integer number (115988581800).

Almost surely, 2^{11200022221212} is an apocalyptic number.

11200022221212 is a gapful number since it is divisible by the number (12) 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 11200022221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16702355779200).

11200022221212 is an abundant number, since it is smaller than the sum of its proper divisors (22204689337188).

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

11200022221212 is a wasteful number, since it uses less digits than its factorization.

11200022221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18897 (or 18892 counting only the distinct ones).

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

Adding to 11200022221212 its reverse (21212222000211), we get a palindrome (32412244221423).

The spelling of 11200022221212 in words is "eleven trillion, two hundred billion, twenty-two million, two hundred twenty-one thousand, two hundred twelve".