1222354547 has 2 divisors, whose sum is σ = 1222354548. Its totient is φ = 1222354546.

The previous prime is 1222354501. The next prime is 1222354571. The reversal of 1222354547 is 7454532221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222354547 - 2⁸ = 1222354291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222354447) 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, 611177273 + 611177274.

It is an arithmetic number, because the mean of its divisors is an integer number (611177274).

Almost surely, 2^1222354547 is an apocalyptic number.

1222354547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222354547 is an equidigital number, since it uses as much as digits as its factorization.

1222354547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 1222354547 is about 34962.1873886632. The cubic root of 1222354547 is about 1069.2166937214.

Adding to 1222354547 its reverse (7454532221), we get a palindrome (8676886768).

The spelling of 1222354547 in words is "one billion, two hundred twenty-two million, three hundred fifty-four thousand, five hundred forty-seven".