11100202001001 has 12 divisors (see below), whose sum is σ = 16036977385728. Its totient is φ = 7398587464344.

The previous prime is 11100202000981. The next prime is 11100202001059. The reversal of 11100202001001 is 10010020200111.

It is a happy number.

It is not a de Polignac number, because 11100202001001 - 2¹⁰ = 11100201999977 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 (11100202001071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128888145 + ... + 128974238.

It is an arithmetic number, because the mean of its divisors is an integer number (1336414782144).

Almost surely, 2^{11100202001001} is an apocalyptic number.

It is an amenable number.

11100202001001 is a deficient number, since it is larger than the sum of its proper divisors (4936775384727).

11100202001001 is a wasteful number, since it uses less digits than its factorization.

11100202001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257867172 (or 257867169 counting only the distinct ones).

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

Adding to 11100202001001 its reverse (10010020200111), we get a palindrome (21110222201112).

The spelling of 11100202001001 in words is "eleven trillion, one hundred billion, two hundred two million, one thousand, one".