11112001012001 has 16 divisors (see below), whose sum is σ = 11806772440320. Its totient is φ = 10421817722880.

The previous prime is 11112001011907. The next prime is 11112001012033. The reversal of 11112001012001 is 10021010021111.

It is a cyclic number.

It is not a de Polignac number, because 11112001012001 - 2²⁶ = 11111933903137 is a prime.

It is a super-2 number, since 2×11112001012001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112001092001) 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, 18778865 + ... + 19361553.

It is an arithmetic number, because the mean of its divisors is an integer number (737923277520).

Almost surely, 2^{11112001012001} is an apocalyptic number.

It is an amenable number.

11112001012001 is a deficient number, since it is larger than the sum of its proper divisors (694771428319).

11112001012001 is a wasteful number, since it uses less digits than its factorization.

11112001012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586624.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11112001012001 its reverse (10021010021111), we get a palindrome (21133011033112).

The spelling of 11112001012001 in words is "eleven trillion, one hundred twelve billion, one million, twelve thousand, one".