20221330331 has 4 divisors (see below), whose sum is σ = 20429797752. Its totient is φ = 20012862912.

The previous prime is 20221330321. The next prime is 20221330343. The reversal of 20221330331 is 13303312202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20221330331 - 2⁶ = 20221330267 is a prime.

It is a super-2 number, since 2×20221330331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221330301) 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, 104233565 + ... + 104233758.

It is an arithmetic number, because the mean of its divisors is an integer number (5107449438).

Almost surely, 2^20221330331 is an apocalyptic number.

20221330331 is a deficient number, since it is larger than the sum of its proper divisors (208467421).

20221330331 is an equidigital number, since it uses as much as digits as its factorization.

20221330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208467420.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20221330331 its reverse (13303312202), we get a palindrome (33524642533).

The spelling of 20221330331 in words is "twenty billion, two hundred twenty-one million, three hundred thirty thousand, three hundred thirty-one".