5224031221 has 8 divisors (see below), whose sum is σ = 5380179840. Its totient is φ = 5068669968.

The previous prime is 5224031207. The next prime is 5224031249. The reversal of 5224031221 is 1221304225.

It is a happy number.

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 5224031221 - 2⁷ = 5224031093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5224031192 and 5224031201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5224031291) 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, 183361 + ... + 209926.

It is an arithmetic number, because the mean of its divisors is an integer number (672522480).

Almost surely, 2^5224031221 is an apocalyptic number.

It is an amenable number.

5224031221 is a deficient number, since it is larger than the sum of its proper divisors (156148619).

5224031221 is a wasteful number, since it uses less digits than its factorization.

5224031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393683.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 5224031221 is about 72277.4599788897. The cubic root of 5224031221 is about 1735.1429283710.

Adding to 5224031221 its reverse (1221304225), we get a palindrome (6445335446).

The spelling of 5224031221 in words is "five billion, two hundred twenty-four million, thirty-one thousand, two hundred twenty-one".