11222121101112 has 160 divisors (see below), whose sum is σ = 33123699528480. Its totient is φ = 3542640710400.

The previous prime is 11222121101077. The next prime is 11222121101171. The reversal of 11222121101112 is 21110112122211.

It is a happy number.

11222121101112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 2222223 + ... + 5232830.

It is an arithmetic number, because the mean of its divisors is an integer number (207023122053).

Almost surely, 2^{11222121101112} is an apocalyptic number.

11222121101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11222121101112 is an abundant number, since it is smaller than the sum of its proper divisors (21901578427368).

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

11222121101112 is a wasteful number, since it uses less digits than its factorization.

11222121101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7455195 (or 7455182 counting only the distinct ones).

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

Adding to 11222121101112 its reverse (21110112122211), we get a palindrome (32332233223323).

The spelling of 11222121101112 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred twelve".