5221991224 has 32 divisors (see below), whose sum is σ = 9842122080. Its totient is φ = 2597453824.

The previous prime is 5221991219. The next prime is 5221991233. The reversal of 5221991224 is 4221991225.

It is a super-4 number, since 4×5221991224⁴ (a number of 40 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501109 + ... + 2503195.

It is an arithmetic number, because the mean of its divisors is an integer number (307566315).

Almost surely, 2^5221991224 is an apocalyptic number.

It is an amenable number.

5221991224 is a deficient number, since it is larger than the sum of its proper divisors (4620130856).

5221991224 is a wasteful number, since it uses less digits than its factorization.

5221991224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567 (or 3563 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 5221991224 is about 72263.3463382371. The cubic root of 5221991224 is about 1734.9170397758.

Subtracting from 5221991224 its reverse (4221991225), we obtain a palindrome (999999999).

The spelling of 5221991224 in words is "five billion, two hundred twenty-one million, nine hundred ninety-one thousand, two hundred twenty-four".