11210320211221 has 8 divisors (see below), whose sum is σ = 11227369063104. Its totient is φ = 11193276632160.

The previous prime is 11210320211219. The next prime is 11210320211249. The reversal of 11210320211221 is 12211202301211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11210320211221 - 2¹ = 11210320211219 is a prime.

It is a super-2 number, since 2×11210320211221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210320211201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947626 + ... + 5577556.

It is an arithmetic number, because the mean of its divisors is an integer number (1403421132888).

Almost surely, 2^{11210320211221} is an apocalyptic number.

It is an amenable number.

11210320211221 is a deficient number, since it is larger than the sum of its proper divisors (17048851883).

11210320211221 is an equidigital number, since it uses as much as digits as its factorization.

11210320211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636411.

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

Adding to 11210320211221 its reverse (12211202301211), we get a palindrome (23421522512432).

The spelling of 11210320211221 in words is "eleven trillion, two hundred ten billion, three hundred twenty million, two hundred eleven thousand, two hundred twenty-one".