1225703075871 has 16 divisors (see below), whose sum is σ = 1635809356800. Its totient is φ = 816366363648.

The previous prime is 1225703075801. The next prime is 1225703075953. The reversal of 1225703075871 is 1785703075221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1225703075871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225703075871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225703075801) 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 15 ways as a sum of consecutive naturals, for example, 19577800 + ... + 19640306.

It is an arithmetic number, because the mean of its divisors is an integer number (102238084800).

Almost surely, 2^{1225703075871} is an apocalyptic number.

1225703075871 is a deficient number, since it is larger than the sum of its proper divisors (410106280929).

1225703075871 is a wasteful number, since it uses less digits than its factorization.

1225703075871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68558.

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 1225703075871 in words is "one trillion, two hundred twenty-five billion, seven hundred three million, seventy-five thousand, eight hundred seventy-one".