2245111321 has 2 divisors, whose sum is σ = 2245111322. Its totient is φ = 2245111320.

The previous prime is 2245111237. The next prime is 2245111331. The reversal of 2245111321 is 1231115422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437926400 + 807184921 = 37920^2 + 28411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245111321 - 2¹³ = 2245103129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2245111292 and 2245111301.

It is not a weakly prime, because it can be changed into another prime (2245111331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122555660 + 1122555661.

It is an arithmetic number, because the mean of its divisors is an integer number (1122555661).

Almost surely, 2^2245111321 is an apocalyptic number.

It is an amenable number.

2245111321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245111321 is an equidigital number, since it uses as much as digits as its factorization.

2245111321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 2245111321 is about 47382.6056797218. The cubic root of 2245111321 is about 1309.4209746094.

Adding to 2245111321 its reverse (1231115422), we get a palindrome (3476226743).

The spelling of 2245111321 in words is "two billion, two hundred forty-five million, one hundred eleven thousand, three hundred twenty-one".