11112121110222 has 48 divisors (see below), whose sum is σ = 26277599567232. Its totient is φ = 3365695833360.

The previous prime is 11112121110193. The next prime is 11112121110241. The reversal of 11112121110222 is 22201112121111.

It is a happy number.

11112121110222 is a `hidden beast` number, since 111 + 121 + 211 + 1 + 0 + 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 = 11112121110195 and 11112121110204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13032348 + ... + 13858799.

It is an arithmetic number, because the mean of its divisors is an integer number (547449990984).

Almost surely, 2^{11112121110222} is an apocalyptic number.

11112121110222 is an abundant number, since it is smaller than the sum of its proper divisors (15165478457010).

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

11112121110222 is a wasteful number, since it uses less digits than its factorization.

11112121110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26893253 (or 26893250 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11112121110222 its reverse (22201112121111), we get a palindrome (33313233231333).

The spelling of 11112121110222 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty-two".