1222450125 has 64 divisors (see below), whose sum is σ = 2261575680. Its totient is φ = 582336000.

The previous prime is 1222450123. The next prime is 1222450129. The reversal of 1222450125 is 5210542221.

It is not a de Polignac number, because 1222450125 - 2¹ = 1222450123 is a prime.

It is a super-2 number, since 2×1222450125² = 2988768616225031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222450095 and 1222450104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222450121) 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 in 63 ways as a sum of consecutive naturals, for example, 147081 + ... + 155169.

It is an arithmetic number, because the mean of its divisors is an integer number (35337120).

Almost surely, 2^1222450125 is an apocalyptic number.

1222450125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222450125 is a deficient number, since it is larger than the sum of its proper divisors (1039125555).

1222450125 is a wasteful number, since it uses less digits than its factorization.

1222450125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151 (or 8141 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1222450125 is about 34963.5542386640. The cubic root of 1222450125 is about 1069.2445609579.

Adding to 1222450125 its reverse (5210542221), we get a palindrome (6432992346).

The spelling of 1222450125 in words is "one billion, two hundred twenty-two million, four hundred fifty thousand, one hundred twenty-five".