11201210022222 has 96 divisors (see below), whose sum is σ = 27224037719424. Its totient is φ = 3298572849600.

The previous prime is 11201210022199. The next prime is 11201210022257. The reversal of 11201210022222 is 22222001210211.

It is a happy number.

11201210022222 is a `hidden beast` number, since 11 + 201 + 210 + 0 + 22 + 222 = 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 = 11201210022195 and 11201210022204.

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, 5134197 + ... + 6983007.

It is an arithmetic number, because the mean of its divisors is an integer number (283583726244).

Almost surely, 2^{11201210022222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11201210022222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13612018859712).

11201210022222 is an abundant number, since it is smaller than the sum of its proper divisors (16022827697202).

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

11201210022222 is a wasteful number, since it uses less digits than its factorization.

11201210022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849694 (or 1849691 counting only the distinct ones).

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

Adding to 11201210022222 its reverse (22222001210211), we get a palindrome (33423211232433).

The spelling of 11201210022222 in words is "eleven trillion, two hundred one billion, two hundred ten million, twenty-two thousand, two hundred twenty-two".