5331042221 has 4 divisors (see below), whose sum is σ = 5337632700. Its totient is φ = 5324451744.

The previous prime is 5331042209. The next prime is 5331042293. The reversal of 5331042221 is 1222401335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1222401335 = 5 ⋅244480267.

It can be written as a sum of positive squares in 2 ways, for example, as 4780201321 + 550840900 = 69139^2 + 23470^2 .

It is a cyclic number.

It is not a de Polignac number, because 5331042221 - 2¹⁰ = 5331041197 is a prime.

It is a super-2 number, since 2×5331042221² = 56840022324169225682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5331044221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294026 + ... + 3295643.

It is an arithmetic number, because the mean of its divisors is an integer number (1334408175).

Almost surely, 2^5331042221 is an apocalyptic number.

It is an amenable number.

5331042221 is a deficient number, since it is larger than the sum of its proper divisors (6590479).

5331042221 is an equidigital number, since it uses as much as digits as its factorization.

5331042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590478.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 5331042221 is about 73013.9864751953. The cubic root of 5331042221 is about 1746.9107097670.

Adding to 5331042221 its reverse (1222401335), we get a palindrome (6553443556).

The spelling of 5331042221 in words is "five billion, three hundred thirty-one million, forty-two thousand, two hundred twenty-one".