1225134430555 has 64 divisors (see below), whose sum is σ = 1732102834176. Its totient is φ = 814447872000.

The previous prime is 1225134430489. The next prime is 1225134430577. The reversal of 1225134430555 is 5550344315221.

It is not a de Polignac number, because 1225134430555 - 2¹³ = 1225134422363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112795825 + ... + 112806685.

It is an arithmetic number, because the mean of its divisors is an integer number (27064106784).

Almost surely, 2^{1225134430555} is an apocalyptic number.

1225134430555 is a deficient number, since it is larger than the sum of its proper divisors (506968403621).

1225134430555 is a wasteful number, since it uses less digits than its factorization.

1225134430555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 1225134430555 its reverse (5550344315221), we get a palindrome (6775478745776).

The spelling of 1225134430555 in words is "one trillion, two hundred twenty-five billion, one hundred thirty-four million, four hundred thirty thousand, five hundred fifty-five".