11210120012221 has 16 divisors (see below), whose sum is σ = 12259496174464. Its totient is φ = 10187639884224.

The previous prime is 11210120012219. The next prime is 11210120012249. The reversal of 11210120012221 is 12221002101211.

It is a cyclic number.

It is not a de Polignac number, because 11210120012221 - 2¹ = 11210120012219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210120012195 and 11210120012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210120012251) 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, 2056206 + ... + 5162191.

It is an arithmetic number, because the mean of its divisors is an integer number (766218510904).

Almost surely, 2^{11210120012221} is an apocalyptic number.

It is an amenable number.

11210120012221 is a deficient number, since it is larger than the sum of its proper divisors (1049376162243).

11210120012221 is a wasteful number, since it uses less digits than its factorization.

11210120012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220260.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11210120012221 its reverse (12221002101211), we get a palindrome (23431122113432).

The spelling of 11210120012221 in words is "eleven trillion, two hundred ten billion, one hundred twenty million, twelve thousand, two hundred twenty-one".