11133222220321 has 2 divisors, whose sum is σ = 11133222220322. Its totient is φ = 11133222220320.

The previous prime is 11133222220319. The next prime is 11133222220331. The reversal of 11133222220321 is 12302222233111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7081777867921 + 4051444352400 = 2661161^2 + 2012820^2 .

It is a cyclic number.

It is not a de Polignac number, because 11133222220321 - 2¹ = 11133222220319 is a prime.

Together with 11133222220319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11133222220331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566611110160 + 5566611110161.

It is an arithmetic number, because the mean of its divisors is an integer number (5566611110161).

Almost surely, 2^{11133222220321} is an apocalyptic number.

It is an amenable number.

11133222220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133222220321 is an equidigital number, since it uses as much as digits as its factorization.

11133222220321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11133222220321 its reverse (12302222233111), we get a palindrome (23435444453432).

The spelling of 11133222220321 in words is "eleven trillion, one hundred thirty-three billion, two hundred twenty-two million, two hundred twenty thousand, three hundred twenty-one".