11100112212222 has 48 divisors (see below), whose sum is σ = 26236897949808. Its totient is φ = 3363635869440.

The previous prime is 11100112212197. The next prime is 11100112212223. The reversal of 11100112212222 is 22221221100111.

It is a super-2 number, since 2×11100112212222² (a number of 27 digits) contains 22 as substring.

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 = 11100112212195 and 11100112212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100112212223) 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, 24412468 + ... + 24863000.

It is an arithmetic number, because the mean of its divisors is an integer number (546602040621).

Almost surely, 2^{11100112212222} is an apocalyptic number.

11100112212222 is an abundant number, since it is smaller than the sum of its proper divisors (15136785737586).

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

11100112212222 is a wasteful number, since it uses less digits than its factorization.

11100112212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574985 (or 574982 counting only the distinct ones).

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

Adding to 11100112212222 its reverse (22221221100111), we get a palindrome (33321333312333).

It can be divided in two parts, 1110011 and 2212222, that added together give a palindrome (3322233).

The spelling of 11100112212222 in words is "eleven trillion, one hundred billion, one hundred twelve million, two hundred twelve thousand, two hundred twenty-two".