11201222012311 has 4 divisors (see below), whose sum is σ = 11343009632800. Its totient is φ = 11059434391824.

The previous prime is 11201222012287. The next prime is 11201222012359. The reversal of 11201222012311 is 11321022210211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11201222012311 - 2¹¹ = 11201222010263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201225012311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70893810126 + ... + 70893810283.

It is an arithmetic number, because the mean of its divisors is an integer number (2835752408200).

Almost surely, 2^{11201222012311} is an apocalyptic number.

11201222012311 is a deficient number, since it is larger than the sum of its proper divisors (141787620489).

11201222012311 is an equidigital number, since it uses as much as digits as its factorization.

11201222012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141787620488.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11201222012311 its reverse (11321022210211), we get a palindrome (22522244222522).

The spelling of 11201222012311 in words is "eleven trillion, two hundred one billion, two hundred twenty-two million, twelve thousand, three hundred eleven".