11001200010012 has 36 divisors (see below), whose sum is σ = 27810270393360. Its totient is φ = 3666844936512.

The previous prime is 11001200009959. The next prime is 11001200010107. The reversal of 11001200010012 is 21001000210011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 11001200009976 and 11001200010003.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 8634712 + ... + 9826527.

Almost surely, 2^{11001200010012} is an apocalyptic number.

11001200010012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11001200010012 is an abundant number, since it is smaller than the sum of its proper divisors (16809070383348).

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

11001200010012 is a wasteful number, since it uses less digits than its factorization.

11001200010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18477802 (or 18477797 counting only the distinct ones).

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

Adding to 11001200010012 its reverse (21001000210011), we get a palindrome (32002200220023).

The spelling of 11001200010012 in words is "eleven trillion, one billion, two hundred million, ten thousand, twelve".