1222544353 has 2 divisors, whose sum is σ = 1222544354. Its totient is φ = 1222544352.

The previous prime is 1222544293. The next prime is 1222544357. The reversal of 1222544353 is 3534452221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184942929 + 37601424 = 34423^2 + 6132^2 .

It is an emirp because it is prime and its reverse (3534452221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222544353 is a prime.

It is a super-2 number, since 2×1222544353² = 2989229390104377218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222544357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611272176 + 611272177.

It is an arithmetic number, because the mean of its divisors is an integer number (611272177).

Almost surely, 2^1222544353 is an apocalyptic number.

It is an amenable number.

1222544353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222544353 is an equidigital number, since it uses as much as digits as its factorization.

1222544353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 31.

The square root of 1222544353 is about 34964.9017301636. The cubic root of 1222544353 is about 1069.2720331593.

Adding to 1222544353 its reverse (3534452221), we get a palindrome (4756996574).

The spelling of 1222544353 in words is "one billion, two hundred twenty-two million, five hundred forty-four thousand, three hundred fifty-three".