11221112120112 has 60 divisors (see below), whose sum is σ = 31404144006144. Its totient is φ = 3740297462400.

The previous prime is 11221112120087. The next prime is 11221112120117. The reversal of 11221112120112 is 21102121112211.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (11221112120117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6881233 + ... + 8354255.

Almost surely, 2^{11221112120112} is an apocalyptic number.

11221112120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221112120112 is an abundant number, since it is smaller than the sum of its proper divisors (20183031886032).

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

11221112120112 is a wasteful number, since it uses less digits than its factorization.

11221112120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525938 (or 1525929 counting only the distinct ones).

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

Adding to 11221112120112 its reverse (21102121112211), we get a palindrome (32323233232323).

The spelling of 11221112120112 in words is "eleven trillion, two hundred twenty-one billion, one hundred twelve million, one hundred twenty thousand, one hundred twelve".