11112122210000 has 200 divisors, whose sum is σ = 30759180661440. Its totient is φ = 3808351872000.

The previous prime is 11112122209987. The next prime is 11112122210017. The reversal of 11112122210000 is 1222121111.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 183159671 + ... + 183220329.

Almost surely, 2^{11112122210000} is an apocalyptic number.

11112122210000 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 11112122210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15379590330720).

11112122210000 is an abundant number, since it is smaller than the sum of its proper divisors (19647058451440).

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

11112122210000 is an equidigital number, since it uses as much as digits as its factorization.

11112122210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63311 (or 63290 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112122210000 its reverse (1222121111), we get a palindrome (11113344331111).

The spelling of 11112122210000 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-two million, two hundred ten thousand".