1225110505 has 16 divisors (see below), whose sum is σ = 1479479040. Its totient is φ = 973876608.

The previous prime is 1225110503. The next prime is 1225110511. The reversal of 1225110505 is 5050115221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1225110505 - 2¹ = 1225110503 is a prime.

It is a super-2 number, since 2×1225110505² = 3001791498922710050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1225110503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860224 + ... + 861646.

It is an arithmetic number, because the mean of its divisors is an integer number (92467440).

Almost surely, 2^1225110505 is an apocalyptic number.

It is an amenable number.

1225110505 is a deficient number, since it is larger than the sum of its proper divisors (254368535).

1225110505 is a wasteful number, since it uses less digits than its factorization.

1225110505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1225110505 is about 35001.5786072571. The cubic root of 1225110505 is about 1070.0196534661.

Adding to 1225110505 its reverse (5050115221), we get a palindrome (6275225726).

The spelling of 1225110505 in words is "one billion, two hundred twenty-five million, one hundred ten thousand, five hundred five".