1225122415 has 16 divisors (see below), whose sum is σ = 1604926080. Its totient is φ = 890370720.

The previous prime is 1225122389. The next prime is 1225122461. The reversal of 1225122415 is 5142215221.

It is not a de Polignac number, because 1225122415 - 2⁹ = 1225121903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225122415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79792 + ... + 93898.

It is an arithmetic number, because the mean of its divisors is an integer number (100307880).

Almost surely, 2^1225122415 is an apocalyptic number.

1225122415 is a deficient number, since it is larger than the sum of its proper divisors (379803665).

1225122415 is a wasteful number, since it uses less digits than its factorization.

1225122415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702.

The product of its digits is 1600, while the sum is 25.

The square root of 1225122415 is about 35001.7487420272. The cubic root of 1225122415 is about 1070.0231208793.

Adding to 1225122415 its reverse (5142215221), we get a palindrome (6367337636).

The spelling of 1225122415 in words is "one billion, two hundred twenty-five million, one hundred twenty-two thousand, four hundred fifteen".