11012002100001 has 24 divisors (see below), whose sum is σ = 18180595130880. Its totient is φ = 6291862327296.

The previous prime is 11012002099997. The next prime is 11012002100027. The reversal of 11012002100001 is 10000120021011.

It is a happy number.

It is not a de Polignac number, because 11012002100001 - 2² = 11012002099997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11012002100041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9302496 + ... + 10419233.

It is an arithmetic number, because the mean of its divisors is an integer number (757524797120).

Almost surely, 2^{11012002100001} is an apocalyptic number.

It is an amenable number.

11012002100001 is a deficient number, since it is larger than the sum of its proper divisors (7168593030879).

11012002100001 is a wasteful number, since it uses less digits than its factorization.

11012002100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19730605 (or 19730602 counting only the distinct ones).

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

Adding to 11012002100001 its reverse (10000120021011), we get a palindrome (21012122121012).

The spelling of 11012002100001 in words is "eleven trillion, twelve billion, two million, one hundred thousand, one".