722101 has 4 divisors (see below), whose sum is σ = 734400. Its totient is φ = 709804.

The previous prime is 722093. The next prime is 722119. The reversal of 722101 is 101227.

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 an emirpimes, since its reverse is a distinct semiprime: 101227 = 7 ⋅14461.

It is a cyclic number.

It is not a de Polignac number, because 722101 - 2³ = 722093 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 (720101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2⁷²²¹⁰¹ is an apocalyptic number.

It is an amenable number.

722101 is a deficient number, since it is larger than the sum of its proper divisors (12299).

722101 is a wasteful number, since it uses less digits than its factorization.

722101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12298.

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

The square root of 722101 is about 849.7652617047. The cubic root of 722101 is about 89.7151901898.

Adding to 722101 its reverse (101227), we get a palindrome (823328).

The spelling of 722101 in words is "seven hundred twenty-two thousand, one hundred one", and thus it is an iban number.