10010520021501 has 24 divisors (see below), whose sum is σ = 14958411656760. Its totient is φ = 6443482752000.

The previous prime is 10010520021457. The next prime is 10010520021511. The reversal of 10010520021501 is 10512002501001.

10010520021501 is a `hidden beast` number, since 100 + 10 + 52 + 0 + 0 + 2 + 1 + 501 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4619602254276 + 5390917767225 = 2149326^2 + 2321835^2 .

It is not a de Polignac number, because 10010520021501 - 2¹⁰ = 10010520020477 is a prime.

It is a super-2 number, since 2×10010520021501² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010520021511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35156101 + ... + 35439701.

It is an arithmetic number, because the mean of its divisors is an integer number (623267152365).

Almost surely, 2^{10010520021501} is an apocalyptic number.

It is an amenable number.

10010520021501 is a deficient number, since it is larger than the sum of its proper divisors (4947891635259).

10010520021501 is a wasteful number, since it uses less digits than its factorization.

10010520021501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418877 (or 418874 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 10010520021501 its reverse (10512002501001), we get a palindrome (20522522522502).

The spelling of 10010520021501 in words is "ten trillion, ten billion, five hundred twenty million, twenty-one thousand, five hundred one".