11100112221222 has 24 divisors (see below), whose sum is σ = 24700249718976. Its totient is φ = 3600036395856.

The previous prime is 11100112221217. The next prime is 11100112221299. The reversal of 11100112221222 is 22212221100111.

11100112221222 is a `hidden beast` number, since 1 + 110 + 0 + 112 + 221 + 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 = 11100112221195 and 11100112221204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8333416918 + ... + 8333418249.

It is an arithmetic number, because the mean of its divisors is an integer number (1029177071624).

Almost surely, 2^{11100112221222} is an apocalyptic number.

11100112221222 is an abundant number, since it is smaller than the sum of its proper divisors (13600137497754).

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

11100112221222 is a wasteful number, since it uses less digits than its factorization.

11100112221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666835212 (or 16666835209 counting only the distinct ones).

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

Adding to 11100112221222 its reverse (22212221100111), we get a palindrome (33312333321333).

The spelling of 11100112221222 in words is "eleven trillion, one hundred billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".