5201210121025 has 12 divisors (see below), whose sum is σ = 6459083781292. Its totient is φ = 4154785367040.

The previous prime is 5201210120941. The next prime is 5201210121059.

It is a happy number.

5201210121025 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 4506302641 + 5196703818384 = 67129^2 + 2279628^2 .

It is not a de Polignac number, because 5201210121025 - 2¹¹ = 5201210118977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5201210120987 and 5201210121005.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154551084 + ... + 154584733.

Almost surely, 2^{5201210121025} is an apocalyptic number.

It is an amenable number.

5201210121025 is a deficient number, since it is larger than the sum of its proper divisors (1257873660267).

5201210121025 is a wasteful number, since it uses less digits than its factorization.

5201210121025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309136500 (or 309136495 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

It can be divided in two parts, 5201210 and 121025, that added together give a palindrome (5322235).

The spelling of 5201210121025 in words is "five trillion, two hundred one billion, two hundred ten million, one hundred twenty-one thousand, twenty-five".