10721201 has 4 divisors (see below), whose sum is σ = 10728432. Its totient is φ = 10713972.

The previous prime is 10721159. The next prime is 10721219. The reversal of 10721201 is 10212701.

10721201 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10721201 is a prime.

It is a super-2 number, since 2×10721201² = 229888301764802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10721261) 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, 491 + ... + 4656.

It is an arithmetic number, because the mean of its divisors is an integer number (2682108).

Almost surely, 2^10721201 is an apocalyptic number.

It is an amenable number.

10721201 is a deficient number, since it is larger than the sum of its proper divisors (7231).

10721201 is an equidigital number, since it uses as much as digits as its factorization.

10721201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230.

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

The square root of 10721201 is about 3274.3245104907. The cubic root of 10721201 is about 220.5029882548.

Adding to 10721201 its reverse (10212701), we get a palindrome (20933902).

The spelling of 10721201 in words is "ten million, seven hundred twenty-one thousand, two hundred one".