1225268056851 has 8 divisors (see below), whose sum is σ = 1633743130560. Its totient is φ = 816819177192.

The previous prime is 1225268056811. The next prime is 1225268056867. The reversal of 1225268056851 is 1586508625221.

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

It is not a de Polignac number, because 1225268056851 - 2⁶ = 1225268056787 is a prime.

It is a super-2 number, since 2×1225268056851² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225268056794 and 1225268056803.

It is not an unprimeable number, because it can be changed into a prime (1225268056811) 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, 6439105 + ... + 6626658.

It is an arithmetic number, because the mean of its divisors is an integer number (204217891320).

Almost surely, 2^{1225268056851} is an apocalyptic number.

1225268056851 is a deficient number, since it is larger than the sum of its proper divisors (408475073709).

1225268056851 is a wasteful number, since it uses less digits than its factorization.

1225268056851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097025.

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 1225268056851 in words is "one trillion, two hundred twenty-five billion, two hundred sixty-eight million, fifty-six thousand, eight hundred fifty-one".