1222543230225 has 48 divisors (see below), whose sum is σ = 2076386602752. Its totient is φ = 634252239360.

The previous prime is 1222543230197. The next prime is 1222543230323. The reversal of 1222543230225 is 5220323452221.

It is a happy number.

It is not a de Polignac number, because 1222543230225 - 2⁸ = 1222543229969 is a prime.

It is a super-2 number, since 2×1222543230225² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12335469 + ... + 12434181.

It is an arithmetic number, because the mean of its divisors is an integer number (43258054224).

Almost surely, 2^{1222543230225} is an apocalyptic number.

1222543230225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222543230225 is a deficient number, since it is larger than the sum of its proper divisors (853843372527).

1222543230225 is a wasteful number, since it uses less digits than its factorization.

1222543230225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103226 (or 103221 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 1222543230225 its reverse (5220323452221), we get a palindrome (6442866682446).

The spelling of 1222543230225 in words is "one trillion, two hundred twenty-two billion, five hundred forty-three million, two hundred thirty thousand, two hundred twenty-five".