11011001200001 has 16 divisors (see below), whose sum is σ = 12043509686208. Its totient is φ = 9983763787200.

The previous prime is 11011001199923. The next prime is 11011001200027. The reversal of 11011001200001 is 10000210011011.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011001200001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011001200081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10731530 + ... + 11712716.

It is an arithmetic number, because the mean of its divisors is an integer number (752719355388).

Almost surely, 2^{11011001200001} is an apocalyptic number.

11011001200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011001200001 is a deficient number, since it is larger than the sum of its proper divisors (1032508486207).

11011001200001 is a wasteful number, since it uses less digits than its factorization.

11011001200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983872.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11011001200001 its reverse (10000210011011), we get a palindrome (21011211211012).

The spelling of 11011001200001 in words is "eleven trillion, eleven billion, one million, two hundred thousand, one".