11210121222011 has 4 divisors (see below), whose sum is σ = 11220607772400. Its totient is φ = 11199634671624.

The previous prime is 11210121221969. The next prime is 11210121222043. The reversal of 11210121222011 is 11022212101211.

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 11210121222011 - 2⁶ = 11210121221947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210129222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5243273591 + ... + 5243275728.

It is an arithmetic number, because the mean of its divisors is an integer number (2805151943100).

Almost surely, 2^{11210121222011} is an apocalyptic number.

11210121222011 is a deficient number, since it is larger than the sum of its proper divisors (10486550389).

11210121222011 is a wasteful number, since it uses less digits than its factorization.

11210121222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486550388.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11210121222011 its reverse (11022212101211), we get a palindrome (22232333323222).

The spelling of 11210121222011 in words is "eleven trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, eleven".