11112201222210 has 320 divisors, whose sum is σ = 33731949588480. Its totient is φ = 2600036651520.

The previous prime is 11112201222167. The next prime is 11112201222289. The reversal of 11112201222210 is 1222210221111.

11112201222210 is a `hidden beast` number, since 1 + 1 + 11 + 220 + 1 + 222 + 210 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 933557119 + ... + 933569021.

It is an arithmetic number, because the mean of its divisors is an integer number (105412342464).

Almost surely, 2^{11112201222210} is an apocalyptic number.

11112201222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11112201222210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16865974794240).

11112201222210 is an abundant number, since it is smaller than the sum of its proper divisors (22619748366270).

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

11112201222210 is a wasteful number, since it uses less digits than its factorization.

11112201222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15575 (or 15566 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11112201222210 its reverse (1222210221111), we get a palindrome (12334411443321).

The spelling of 11112201222210 in words is "eleven trillion, one hundred twelve billion, two hundred one million, two hundred twenty-two thousand, two hundred ten".