11220212012112 has 70 divisors (see below), whose sum is σ = 32593830932922. Its totient is φ = 3740070666816.

The previous prime is 11220212012111. The next prime is 11220212012189. The reversal of 11220212012112 is 21121021202211.

11220212012112 is a `hidden beast` number, since 11 + 220 + 21 + 201 + 211 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7738166443536 + 3482045568576 = 2781756^2 + 1866024^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220212012111) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 480964503 + ... + 480987830.

Almost surely, 2^{11220212012112} is an apocalyptic number.

11220212012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220212012112 is an abundant number, since it is smaller than the sum of its proper divisors (21373618920810).

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

11220212012112 is an frugal number, since it uses more digits than its factorization.

11220212012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961952359 (or 961952338 counting only the distinct ones).

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

Adding to 11220212012112 its reverse (21121021202211), we get a palindrome (32341233214323).

The spelling of 11220212012112 in words is "eleven trillion, two hundred twenty billion, two hundred twelve million, twelve thousand, one hundred twelve".