7232273221 has 4 divisors (see below), whose sum is σ = 7612919200. Its totient is φ = 6851627244.

The previous prime is 7232273207. The next prime is 7232273239. The reversal of 7232273221 is 1223722327.

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: 1223722327 = 883 ⋅1385869.

It is a cyclic number.

It is not a de Polignac number, because 7232273221 - 2²⁹ = 6695402309 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 (7232573221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190322961 + ... + 190322998.

It is an arithmetic number, because the mean of its divisors is an integer number (1903229800).

Almost surely, 2^7232273221 is an apocalyptic number.

It is an amenable number.

7232273221 is a deficient number, since it is larger than the sum of its proper divisors (380645979).

7232273221 is a wasteful number, since it uses less digits than its factorization.

7232273221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380645978.

The product of its digits is 14112, while the sum is 31.

The square root of 7232273221 is about 85042.7728910576. The cubic root of 7232273221 is about 1933.8596036169.

Adding to 7232273221 its reverse (1223722327), we get a palindrome (8455995548).

The spelling of 7232273221 in words is "seven billion, two hundred thirty-two million, two hundred seventy-three thousand, two hundred twenty-one".