10021207 has 4 divisors (see below), whose sum is σ = 11452816. Its totient is φ = 8589600.

The previous prime is 10021163. The next prime is 10021213. The reversal of 10021207 is 70212001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70212001 = 631 ⋅111271.

It is a cyclic number.

It is not a de Polignac number, because 10021207 - 2⁷ = 10021079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715794 + ... + 715807.

It is an arithmetic number, because the mean of its divisors is an integer number (2863204).

Almost surely, 2^10021207 is an apocalyptic number.

10021207 is a deficient number, since it is larger than the sum of its proper divisors (1431609).

10021207 is an equidigital number, since it uses as much as digits as its factorization.

10021207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431608.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 10021207 is about 3165.6290054269. The cubic root of 10021207 is about 215.5956584593.

Adding to 10021207 its reverse (70212001), we get a palindrome (80233208).

It can be divided in two parts, 1002 and 1207, that added together give a square (2209 = 47²).

The spelling of 10021207 in words is "ten million, twenty-one thousand, two hundred seven".