11011211200012 has 24 divisors (see below), whose sum is σ = 20109990944736. Its totient is φ = 5265560496768.

The previous prime is 11011211200009. The next prime is 11011211200063. The reversal of 11011211200012 is 21000211211011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11011211199965 and 11011211200001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6897993 + ... + 8342944.

It is an arithmetic number, because the mean of its divisors is an integer number (837916289364).

Almost surely, 2^{11011211200012} is an apocalyptic number.

It is an amenable number.

11011211200012 is a deficient number, since it is larger than the sum of its proper divisors (9098779744724).

11011211200012 is a wasteful number, since it uses less digits than its factorization.

11011211200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15248817 (or 15248815 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011211200012 its reverse (21000211211011), we get a palindrome (32011422411023).

The spelling of 11011211200012 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred thousand, twelve".