11001100020001 has 32 divisors (see below), whose sum is σ = 13590409367808. Its totient is φ = 8671654851840.

The previous prime is 11001100019993. The next prime is 11001100020011. The reversal of 11001100020001 is 10002000110011.

It is a cyclic number.

It is not a de Polignac number, because 11001100020001 - 2³ = 11001100019993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (11001100020011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135445935 + ... + 135527131.

It is an arithmetic number, because the mean of its divisors is an integer number (424700292744).

Almost surely, 2^{11001100020001} is an apocalyptic number.

It is an amenable number.

11001100020001 is a deficient number, since it is larger than the sum of its proper divisors (2589309347807).

11001100020001 is a wasteful number, since it uses less digits than its factorization.

11001100020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86761.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 11001100020001 its reverse (10002000110011), we get a palindrome (21003100130012).

The spelling of 11001100020001 in words is "eleven trillion, one billion, one hundred million, twenty thousand, one".