1222043044549 has 2 divisors, whose sum is σ = 1222043044550. Its totient is φ = 1222043044548.

The previous prime is 1222043044511. The next prime is 1222043044553. The reversal of 1222043044549 is 9454403402221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182453983649 + 39589060900 = 1087407^2 + 198970^2 .

It is an emirp because it is prime and its reverse (9454403402221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222043044549 - 2⁹ = 1222043044037 is a prime.

It is a super-2 number, since 2×1222043044549² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222043044559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611021522274 + 611021522275.

It is an arithmetic number, because the mean of its divisors is an integer number (611021522275).

Almost surely, 2^{1222043044549} is an apocalyptic number.

It is an amenable number.

1222043044549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222043044549 is an equidigital number, since it uses as much as digits as its factorization.

1222043044549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 1222043044549 in words is "one trillion, two hundred twenty-two billion, forty-three million, forty-four thousand, five hundred forty-nine".