1225251211513 has 8 divisors (see below), whose sum is σ = 1400498707520. Its totient is φ = 1050056617680.

The previous prime is 1225251211453. The next prime is 1225251211523. The reversal of 1225251211513 is 3151121525221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225251211513 - 2⁹ = 1225251211001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225251211523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13175898 + ... + 13268563.

It is an arithmetic number, because the mean of its divisors is an integer number (175062338440).

Almost surely, 2^{1225251211513} is an apocalyptic number.

It is an amenable number.

1225251211513 is a deficient number, since it is larger than the sum of its proper divisors (175247496007).

1225251211513 is an equidigital number, since it uses as much as digits as its factorization.

1225251211513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26451087.

The product of its digits is 6000, while the sum is 31.

Adding to 1225251211513 its reverse (3151121525221), we get a palindrome (4376372736734).

The spelling of 1225251211513 in words is "one trillion, two hundred twenty-five billion, two hundred fifty-one million, two hundred eleven thousand, five hundred thirteen".