5221220031 has 24 divisors (see below), whose sum is σ = 7733324976. Its totient is φ = 3393411840.

The previous prime is 5221220027. The next prime is 5221220101. The reversal of 5221220031 is 1300221225.

It is not a de Polignac number, because 5221220031 - 2² = 5221220027 is a prime.

It is a super-2 number, since 2×5221220031² = 54522277224231281922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5221219986 and 5221220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19956 + ... + 104118.

It is an arithmetic number, because the mean of its divisors is an integer number (322221874).

Almost surely, 2^5221220031 is an apocalyptic number.

5221220031 is a deficient number, since it is larger than the sum of its proper divisors (2512104945).

5221220031 is a wasteful number, since it uses less digits than its factorization.

5221220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84343 (or 84340 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5221220031 is about 72258.0101511244. The cubic root of 5221220031 is about 1734.8316303545.

Adding to 5221220031 its reverse (1300221225), we get a palindrome (6521441256).

The spelling of 5221220031 in words is "five billion, two hundred twenty-one million, two hundred twenty thousand, thirty-one".