1222211324449 has 2 divisors, whose sum is σ = 1222211324450. Its totient is φ = 1222211324448.

The previous prime is 1222211324401. The next prime is 1222211324461. The reversal of 1222211324449 is 9444231122221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903912252049 + 318299072400 = 950743^2 + 564180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222211324449 - 2²⁷ = 1222077106721 is a prime.

It is a super-2 number, since 2×1222211324449² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222211324849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611105662224 + 611105662225.

It is an arithmetic number, because the mean of its divisors is an integer number (611105662225).

Almost surely, 2^{1222211324449} is an apocalyptic number.

It is an amenable number.

1222211324449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222211324449 is an equidigital number, since it uses as much as digits as its factorization.

1222211324449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The spelling of 1222211324449 in words is "one trillion, two hundred twenty-two billion, two hundred eleven million, three hundred twenty-four thousand, four hundred forty-nine".