11111122200222 has 48 divisors (see below), whose sum is σ = 26972453909232. Its totient is φ = 3276006543360.

The previous prime is 11111122200221. The next prime is 11111122200239. The reversal of 11111122200222 is 22200222111111.

11111122200222 is a `hidden beast` number, since 1 + 111 + 112 + 220 + 0 + 222 = 666.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11111122200195 and 11111122200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111122200221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758327523 + ... + 758342174.

It is an arithmetic number, because the mean of its divisors is an integer number (561926123109).

Almost surely, 2^{11111122200222} is an apocalyptic number.

11111122200222 is an abundant number, since it is smaller than the sum of its proper divisors (15861331709010).

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

11111122200222 is a wasteful number, since it uses less digits than its factorization.

11111122200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516669753 (or 1516669750 counting only the distinct ones).

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

Adding to 11111122200222 its reverse (22200222111111), we get a palindrome (33311344311333).

It can be divided in two parts, 111111 and 22200222, that multiplied together give a palindrome (2466688866642).

The spelling of 11111122200222 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, two hundred thousand, two hundred twenty-two".