10001021207 has 4 divisors (see below), whose sum is σ = 10435848240. Its totient is φ = 9566194176.

The previous prime is 10001021131. The next prime is 10001021209. The reversal of 10001021207 is 70212010001.

10001021207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001021207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001021191 and 10001021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001021209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217413482 + ... + 217413527.

It is an arithmetic number, because the mean of its divisors is an integer number (2608962060).

Almost surely, 2^10001021207 is an apocalyptic number.

10001021207 is a deficient number, since it is larger than the sum of its proper divisors (434827033).

10001021207 is an equidigital number, since it uses as much as digits as its factorization.

10001021207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434827032.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 10001021207 its reverse (70212010001), we get a palindrome (80213031208).

The spelling of 10001021207 in words is "ten billion, one million, twenty-one thousand, two hundred seven".