20122333331 has 4 divisors (see below), whose sum is σ = 20171532600. Its totient is φ = 20073134064.

The previous prime is 20122333313. The next prime is 20122333349. The reversal of 20122333331 is 13333322102.

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

It is an interprime number because it is at equal distance from previous prime (20122333313) and next prime (20122333349).

It is a cyclic number.

It is not a de Polignac number, because 20122333331 - 2¹⁸ = 20122071187 is a prime.

It is a super-2 number, since 2×20122333331² (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 = 20122333297 and 20122333306.

It is not an unprimeable number, because it can be changed into a prime (20122393331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24599021 + ... + 24599838.

It is an arithmetic number, because the mean of its divisors is an integer number (5042883150).

Almost surely, 2^20122333331 is an apocalyptic number.

20122333331 is a deficient number, since it is larger than the sum of its proper divisors (49199269).

20122333331 is an equidigital number, since it uses as much as digits as its factorization.

20122333331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49199268.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20122333331 its reverse (13333322102), we get a palindrome (33455655433).

The spelling of 20122333331 in words is "twenty billion, one hundred twenty-two million, three hundred thirty-three thousand, three hundred thirty-one".