220522331 has 16 divisors (see below), whose sum is σ = 230973120. Its totient is φ = 210355200.

The previous prime is 220522327. The next prime is 220522349. The reversal of 220522331 is 133225022.

It is a cyclic number.

It is not a de Polignac number, because 220522331 - 2² = 220522327 is a prime.

It is a super-2 number, since 2×220522331² = 97260196939347122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220422331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549731 + ... + 550131.

It is an arithmetic number, because the mean of its divisors is an integer number (14435820).

Almost surely, 2^220522331 is an apocalyptic number.

220522331 is a deficient number, since it is larger than the sum of its proper divisors (10450789).

220522331 is a wasteful number, since it uses less digits than its factorization.

220522331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 220522331 is about 14849.9943097632. The cubic root of 220522331 is about 604.1584556781.

Adding to 220522331 its reverse (133225022), we get a palindrome (353747353).

The spelling of 220522331 in words is "two hundred twenty million, five hundred twenty-two thousand, three hundred thirty-one".