1225278622847 has 8 divisors (see below), whose sum is σ = 1236709127280. Its totient is φ = 1213851562560.

The previous prime is 1225278622817. The next prime is 1225278622859. The reversal of 1225278622847 is 7482268725221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225278622847 - 2¹⁴ = 1225278606463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225278622792 and 1225278622801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225278622817) 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 7 ways as a sum of consecutive naturals, for example, 143429 + ... + 1571982.

It is an arithmetic number, because the mean of its divisors is an integer number (154588640910).

Almost surely, 2^{1225278622847} is an apocalyptic number.

1225278622847 is a deficient number, since it is larger than the sum of its proper divisors (11430504433).

1225278622847 is a wasteful number, since it uses less digits than its factorization.

1225278622847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722073.

The product of its digits is 12042240, while the sum is 56.

The spelling of 1225278622847 in words is "one trillion, two hundred twenty-five billion, two hundred seventy-eight million, six hundred twenty-two thousand, eight hundred forty-seven".