6722101 has 4 divisors (see below), whose sum is σ = 6727500. Its totient is φ = 6716704.

The previous prime is 6722069. The next prime is 6722117. The reversal of 6722101 is 1012276.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 4622500 = 1449^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 6722101 - 2⁵ = 6722069 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 (6722161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (1681875).

Almost surely, 2^6722101 is an apocalyptic number.

It is an amenable number.

6722101 is a deficient number, since it is larger than the sum of its proper divisors (5399).

6722101 is a wasteful number, since it uses less digits than its factorization.

6722101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 6722101 is about 2592.7014868665. The cubic root of 6722101 is about 188.7274235822.

Adding to 6722101 its reverse (1012276), we get a palindrome (7734377).

The spelling of 6722101 in words is "six million, seven hundred twenty-two thousand, one hundred one".