11220000000012 has 48 divisors (see below), whose sum is σ = 29089759651680. Its totient is φ = 3739888044864.

The previous prime is 11220000000007. The next prime is 11220000000019. The reversal of 11220000000012 is 21000000002211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11219999999931 and 11220000000003.

It is not an unprimeable number, because it can be changed into a prime (11220000000019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109438 + ... + 5185530.

It is an arithmetic number, because the mean of its divisors is an integer number (606036659410).

Almost surely, 2^{11220000000012} is an apocalyptic number.

11220000000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220000000012 is an abundant number, since it is smaller than the sum of its proper divisors (17869759651668).

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

11220000000012 is a wasteful number, since it uses less digits than its factorization.

11220000000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109879 (or 3109871 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11220000000012 its reverse (21000000002211), we get a palindrome (32220000002223).

The spelling of 11220000000012 in words is "eleven trillion, two hundred twenty billion, twelve", and thus it is an aban number.