11202221321 has 2 divisors, whose sum is σ = 11202221322. Its totient is φ = 11202221320.

The previous prime is 11202221293. The next prime is 11202221363. The reversal of 11202221321 is 12312220211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6656764921 + 4545456400 = 81589^2 + 67420^2 .

It is an emirp because it is prime and its reverse (12312220211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202221321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11202221321.

It is not a weakly prime, because it can be changed into another prime (11202227321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601110660 + 5601110661.

It is an arithmetic number, because the mean of its divisors is an integer number (5601110661).

Almost surely, 2^11202221321 is an apocalyptic number.

It is an amenable number.

11202221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202221321 is an equidigital number, since it uses as much as digits as its factorization.

11202221321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11202221321 its reverse (12312220211), we get a palindrome (23514441532).

The spelling of 11202221321 in words is "eleven billion, two hundred two million, two hundred twenty-one thousand, three hundred twenty-one".