20022332331 has 4 divisors (see below), whose sum is σ = 26696443112. Its totient is φ = 13348221552.

The previous prime is 20022332293. The next prime is 20022332339. The reversal of 20022332331 is 13323322002.

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

It is not a de Polignac number, because 20022332331 - 2¹⁹ = 20021808043 is a prime.

It is a super-2 number, since 2×20022332331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022332298 and 20022332307.

It is not an unprimeable number, because it can be changed into a prime (20022332339) 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, 3337055386 + ... + 3337055391.

It is an arithmetic number, because the mean of its divisors is an integer number (6674110778).

Almost surely, 2^20022332331 is an apocalyptic number.

20022332331 is a deficient number, since it is larger than the sum of its proper divisors (6674110781).

20022332331 is an equidigital number, since it uses as much as digits as its factorization.

20022332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674110780.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20022332331 its reverse (13323322002), we get a palindrome (33345654333).

The spelling of 20022332331 in words is "twenty billion, twenty-two million, three hundred thirty-two thousand, three hundred thirty-one".