1312225225061 has 8 divisors (see below), whose sum is σ = 1325743482648. Its totient is φ = 1298717280000.

The previous prime is 1312225225037. The next prime is 1312225225123. The reversal of 1312225225061 is 1605225222131.

It can be written as a sum of positive squares in 4 ways, for example, as 30767264836 + 1281457960225 = 175406^2 + 1132015^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312225225061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312225225001) 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, 2322200 + ... + 2831441.

It is an arithmetic number, because the mean of its divisors is an integer number (165717935331).

Almost surely, 2^{1312225225061} is an apocalyptic number.

It is an amenable number.

1312225225061 is a deficient number, since it is larger than the sum of its proper divisors (13518257587).

1312225225061 is a wasteful number, since it uses less digits than its factorization.

1312225225061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156263.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 1312225225061 in words is "one trillion, three hundred twelve billion, two hundred twenty-five million, two hundred twenty-five thousand, sixty-one".