125215205175112 has 16 divisors (see below), whose sum is σ = 252838395065340. Its totient is φ = 57791633157696.

The previous prime is 125215205175103. The next prime is 125215205175113. The reversal of 125215205175112 is 211571502512521.

It can be written as a sum of positive squares in 2 ways, for example, as 110348427958596 + 14866777216516 = 10504686^2 + 3855746^2 .

It is not an unprimeable number, because it can be changed into a prime (125215205175113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601996178623 + ... + 601996178830.

Almost surely, 2^{125215205175112} is an apocalyptic number.

It is an amenable number.

125215205175112 is an abundant number, since it is smaller than the sum of its proper divisors (127623189890228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125215205175112 is a wasteful number, since it uses less digits than its factorization.

125215205175112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203992357472 (or 1203992357468 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 40.

Adding to 125215205175112 its reverse (211571502512521), we get a palindrome (336786707687633).

The spelling of 125215205175112 in words is "one hundred twenty-five trillion, two hundred fifteen billion, two hundred five million, one hundred seventy-five thousand, one hundred twelve".