11200202001 has 6 divisors (see below), whose sum is σ = 16178069570. Its totient is φ = 7466801328.

The previous prime is 11200201993. The next prime is 11200202003. The reversal of 11200202001 is 10020200211.

It can be written as a sum of positive squares in only one way, i.e., 11193851601 + 6350400 = 105801^2 + 2520^2 .

It is not a de Polignac number, because 11200202001 - 2³ = 11200201993 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: 1244466889 = 11200202001 / (1 + 1 + 2 + 0 + 0 + 2 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11200202003) 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, 622233436 + ... + 622233453.

Almost surely, 2^11200202001 is an apocalyptic number.

It is an amenable number.

11200202001 is a deficient number, since it is larger than the sum of its proper divisors (4977867569).

11200202001 is a wasteful number, since it uses less digits than its factorization.

11200202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244466895 (or 1244466892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11200202001 its reverse (10020200211), we get a palindrome (21220402212).

The spelling of 11200202001 in words is "eleven billion, two hundred million, two hundred two thousand, one".