1312200220425 has 48 divisors (see below), whose sum is σ = 2264351822208. Its totient is φ = 669888294400.

The previous prime is 1312200220423. The next prime is 1312200220459. The reversal of 1312200220425 is 5240220022131.

It is not a de Polignac number, because 1312200220425 - 2¹ = 1312200220423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312200220395 and 1312200220404.

It is not an unprimeable number, because it can be changed into a prime (1312200220423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3862797 + ... + 4188746.

It is an arithmetic number, because the mean of its divisors is an integer number (47173996296).

Almost surely, 2^{1312200220425} is an apocalyptic number.

1312200220425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312200220425 is a deficient number, since it is larger than the sum of its proper divisors (952151601783).

1312200220425 is a wasteful number, since it uses less digits than its factorization.

1312200220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051650 (or 8051645 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 1312200220425 its reverse (5240220022131), we get a palindrome (6552420242556).

The spelling of 1312200220425 in words is "one trillion, three hundred twelve billion, two hundred million, two hundred twenty thousand, four hundred twenty-five".