11201020211001 has 16 divisors (see below), whose sum is σ = 15339900129984. Its totient is φ = 7264784764224.

The previous prime is 11201020210943. The next prime is 11201020211009. The reversal of 11201020211001 is 10011202010211.

It is not a de Polignac number, because 11201020211001 - 2⁹ = 11201020210489 is a prime.

It is a super-2 number, since 2×11201020211001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201020211009) 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, 4058766 + ... + 6235031.

It is an arithmetic number, because the mean of its divisors is an integer number (958743758124).

Almost surely, 2^{11201020211001} is an apocalyptic number.

It is an amenable number.

11201020211001 is a deficient number, since it is larger than the sum of its proper divisors (4138879918983).

11201020211001 is a wasteful number, since it uses less digits than its factorization.

11201020211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303640.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11201020211001 its reverse (10011202010211), we get a palindrome (21212222221212).

The spelling of 11201020211001 in words is "eleven trillion, two hundred one billion, twenty million, two hundred eleven thousand, one".