11101002002001 has 6 divisors (see below), whose sum is σ = 16034780669570. Its totient is φ = 7400668001328.

The previous prime is 11101002001861. The next prime is 11101002002003. The reversal of 11101002002001 is 10020020010111.

It is a happy number.

11101002002001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7940002475601 + 3160999526400 = 2817801^2 + 1777920^2 .

It is not a de Polignac number, because 11101002002001 - 2⁴² = 6702955490897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1233444666889 = 11101002002001 / (1 + 1 + 1 + 0 + 1 + 0 + 0 + 2 + 0 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11101002002003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616722333436 + ... + 616722333453.

Almost surely, 2^{11101002002001} is an apocalyptic number.

It is an amenable number.

11101002002001 is a deficient number, since it is larger than the sum of its proper divisors (4933778667569).

11101002002001 is a wasteful number, since it uses less digits than its factorization.

11101002002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233444666895 (or 1233444666892 counting only the distinct ones).

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

Adding to 11101002002001 its reverse (10020020010111), we get a palindrome (21121022012112).

The spelling of 11101002002001 in words is "eleven trillion, one hundred one billion, two million, two thousand, one".