1220222332213 has 2 divisors, whose sum is σ = 1220222332214. Its totient is φ = 1220222332212.

The previous prime is 1220222332211. The next prime is 1220222332229. The reversal of 1220222332213 is 3122332220221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709137462609 + 511084869604 = 842103^2 + 714902^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220222332213 - 2¹ = 1220222332211 is a prime.

Together with 1220222332211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220222332211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111166106 + 610111166107.

It is an arithmetic number, because the mean of its divisors is an integer number (610111166107).

Almost surely, 2^{1220222332213} is an apocalyptic number.

It is an amenable number.

1220222332213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222332213 is an equidigital number, since it uses as much as digits as its factorization.

1220222332213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1220222332213 its reverse (3122332220221), we get a palindrome (4342554552434).

The spelling of 1220222332213 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, three hundred thirty-two thousand, two hundred thirteen".