7201021 has 8 divisors (see below), whose sum is σ = 7488000. Its totient is φ = 6917520.

The previous prime is 7200983. The next prime is 7201031. The reversal of 7201021 is 1201027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7201021 - 2¹⁷ = 7069949 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 7200992 and 7201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7201031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840 + ... + 5398.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^7201021 is an apocalyptic number.

It is an amenable number.

7201021 is a deficient number, since it is larger than the sum of its proper divisors (286979).

7201021 is a wasteful number, since it uses less digits than its factorization.

7201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

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

The square root of 7201021 is about 2683.4718183726. The cubic root of 7201021 is about 193.1070039403.

Adding to 7201021 its reverse (1201027), we get a palindrome (8402048).

The spelling of 7201021 in words is "seven million, two hundred one thousand, twenty-one".