11111200122112 has 36 divisors (see below), whose sum is σ = 22180757278176. Its totient is φ = 5555159160320.

The previous prime is 11111200122089. The next prime is 11111200122181. The reversal of 11111200122112 is 21122100211111.

It is a super-2 number, since 2×11111200122112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521687 + ... + 4953577.

It is an arithmetic number, because the mean of its divisors is an integer number (616132146616).

Almost surely, 2^{11111200122112} is an apocalyptic number.

It is an amenable number.

11111200122112 is a deficient number, since it is larger than the sum of its proper divisors (11069557156064).

11111200122112 is an equidigital number, since it uses as much as digits as its factorization.

11111200122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444554 (or 3444540 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111200122112 its reverse (21122100211111), we get a palindrome (32233300333223).

The spelling of 11111200122112 in words is "eleven trillion, one hundred eleven billion, two hundred million, one hundred twenty-two thousand, one hundred twelve".