1222251666325 has 6 divisors (see below), whose sum is σ = 1515592066274. Its totient is φ = 977801333040.

The previous prime is 1222251666257. The next prime is 1222251666359. The reversal of 1222251666325 is 5236661522221.

It can be written as a sum of positive squares in 3 ways, for example, as 253478013156 + 968773653169 = 503466^2 + 984263^2 .

It is not a de Polignac number, because 1222251666325 - 2¹⁵ = 1222251633557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24445033302 + ... + 24445033351.

Almost surely, 2^{1222251666325} is an apocalyptic number.

It is an amenable number.

1222251666325 is a deficient number, since it is larger than the sum of its proper divisors (293340399949).

1222251666325 is an equidigital number, since it uses as much as digits as its factorization.

1222251666325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48890066663 (or 48890066658 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 1222251666325 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-one million, six hundred sixty-six thousand, three hundred twenty-five".