1225133013125 has 40 divisors (see below), whose sum is σ = 1749857366400. Its totient is φ = 839982024000.

The previous prime is 1225133013067. The next prime is 1225133013191. The reversal of 1225133013125 is 5213103315221.

It is not a de Polignac number, because 1225133013125 - 2⁶ = 1225133013061 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48317951 + ... + 48343299.

It is an arithmetic number, because the mean of its divisors is an integer number (43746434160).

Almost surely, 2^{1225133013125} is an apocalyptic number.

It is an amenable number.

1225133013125 is a deficient number, since it is larger than the sum of its proper divisors (524724353275).

1225133013125 is an equidigital number, since it uses as much as digits as its factorization.

1225133013125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36423 (or 36408 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 1225133013125 its reverse (5213103315221), we get a palindrome (6438236328346).

The spelling of 1225133013125 in words is "one trillion, two hundred twenty-five billion, one hundred thirty-three million, thirteen thousand, one hundred twenty-five".