11201021122011 has 16 divisors (see below), whose sum is σ = 17302033933824. Its totient is φ = 6312904271424.

The previous prime is 11201021122007. The next prime is 11201021122019. The reversal of 11201021122011 is 11022112010211.

It is a happy number.

It is not a de Polignac number, because 11201021122011 - 2² = 11201021122007 is a prime.

It is a super-2 number, since 2×11201021122011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201021122019) 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, 3653299551 + ... + 3653302616.

It is an arithmetic number, because the mean of its divisors is an integer number (1081377120864).

Almost surely, 2^{11201021122011} is an apocalyptic number.

11201021122011 is a deficient number, since it is larger than the sum of its proper divisors (6101012811813).

11201021122011 is an equidigital number, since it uses as much as digits as its factorization.

11201021122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306602250.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201021122011 its reverse (11022112010211), we get a palindrome (22223133132222).

The spelling of 11201021122011 in words is "eleven trillion, two hundred one billion, twenty-one million, one hundred twenty-two thousand, eleven".