11011200012 has 18 divisors (see below), whose sum is σ = 27833866788. Its totient is φ = 3670399992.

The previous prime is 11011199993. The next prime is 11011200049. The reversal of 11011200012 is 21000211011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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 = 11011199967 and 11011200003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152933298 + ... + 152933369.

Almost surely, 2^11011200012 is an apocalyptic number.

11011200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011200012 is an abundant number, since it is smaller than the sum of its proper divisors (16822666776).

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

11011200012 is a wasteful number, since it uses less digits than its factorization.

11011200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305866677 (or 305866672 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11011200012 its reverse (21000211011), we get a palindrome (32011411023).

The spelling of 11011200012 in words is "eleven billion, eleven million, two hundred thousand, twelve".