11202011001 has 6 divisors (see below), whose sum is σ = 16180682570. Its totient is φ = 7468007328.

The previous prime is 11202010951. The next prime is 11202011003. The reversal of 11202011001 is 10011020211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10645286976 + 556724025 = 103176^2 + 23595^2 .

It is not a de Polignac number, because 11202011001 - 2¹⁰ = 11202009977 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: 1244667889 = 11202011001 / (1 + 1 + 2 + 0 + 2 + 0 + 1 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11202011003) 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, 622333936 + ... + 622333953.

Almost surely, 2^11202011001 is an apocalyptic number.

It is an amenable number.

11202011001 is a deficient number, since it is larger than the sum of its proper divisors (4978671569).

11202011001 is a wasteful number, since it uses less digits than its factorization.

11202011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244667895 (or 1244667892 counting only the distinct ones).

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

Adding to 11202011001 its reverse (10011020211), we get a palindrome (21213031212).

The spelling of 11202011001 in words is "eleven billion, two hundred two million, eleven thousand, one".