11201001 has 16 divisors (see below), whose sum is σ = 17240448. Its totient is φ = 6336000.

The previous prime is 11200999. The next prime is 11201017. The reversal of 11201001 is 10010211.

It is not a de Polignac number, because 11201001 - 2¹ = 11200999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (1077528).

Almost surely, 2^11201001 is an apocalyptic number.

It is an amenable number.

11201001 is a deficient number, since it is larger than the sum of its proper divisors (6039447).

11201001 is a wasteful number, since it uses less digits than its factorization.

11201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 11201001 is about 3346.7896557746. The cubic root of 11201001 is about 223.7444537393.

Adding to 11201001 its reverse (10010211), we get a palindrome (21211212).

Multiplying 11201001 by its reverse (10010211), we get a palindrome (112124383421211).

The spelling of 11201001 in words is "eleven million, two hundred one thousand, one".