2211223321 has 2 divisors, whose sum is σ = 2211223322. Its totient is φ = 2211223320.

The previous prime is 2211223297. The next prime is 2211223327. The reversal of 2211223321 is 1233221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2197265625 + 13957696 = 46875^2 + 3736^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211223321 - 2¹³ = 2211215129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211223327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105611660 + 1105611661.

It is an arithmetic number, because the mean of its divisors is an integer number (1105611661).

Almost surely, 2^2211223321 is an apocalyptic number.

It is an amenable number.

2211223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211223321 is an equidigital number, since it uses as much as digits as its factorization.

2211223321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 2211223321 is about 47023.6464026345. The cubic root of 2211223321 is about 1302.7993564333.

Adding to 2211223321 its reverse (1233221122), we get a palindrome (3444444443).

The spelling of 2211223321 in words is "two billion, two hundred eleven million, two hundred twenty-three thousand, three hundred twenty-one".