5222421 has 8 divisors (see below), whose sum is σ = 7736960. Its totient is φ = 3481596.

The previous prime is 5222411. The next prime is 5222423. The reversal of 5222421 is 1242225.

It is not a de Polignac number, because 5222421 - 2¹⁴ = 5206037 is a prime.

It is a super-2 number, since 2×5222421² = 54547362202482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5222394 and 5222403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5222423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96685 + ... + 96738.

It is an arithmetic number, because the mean of its divisors is an integer number (967120).

Almost surely, 2^5222421 is an apocalyptic number.

It is an amenable number.

5222421 is a deficient number, since it is larger than the sum of its proper divisors (2514539).

5222421 is a wasteful number, since it uses less digits than its factorization.

5222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193432 (or 193426 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 5222421 is about 2285.2616917981. The cubic root of 5222421 is about 173.4964633706.

Adding to 5222421 its reverse (1242225), we get a palindrome (6464646).

The spelling of 5222421 in words is "five million, two hundred twenty-two thousand, four hundred twenty-one".