11201000202001 has 4 divisors (see below), whose sum is σ = 11201006900772. Its totient is φ = 11200993503232.

The previous prime is 11201000201977. The next prime is 11201000202103. The reversal of 11201000202001 is 10020200010211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11008301151376 + 192699050625 = 3317876^2 + 438975^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201000202001 - 2¹¹ = 11201000199953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201000202901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476945 + ... + 4958161.

It is an arithmetic number, because the mean of its divisors is an integer number (2800251725193).

Almost surely, 2^{11201000202001} is an apocalyptic number.

It is an amenable number.

11201000202001 is a deficient number, since it is larger than the sum of its proper divisors (6698771).

11201000202001 is an equidigital number, since it uses as much as digits as its factorization.

11201000202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698770.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11201000202001 its reverse (10020200010211), we get a palindrome (21221200212212).

The spelling of 11201000202001 in words is "eleven trillion, two hundred one billion, two hundred two thousand, one".