20221231234 has 12 divisors (see below), whose sum is σ = 30837253122. Its totient is φ = 9944864160.

The previous prime is 20221231229. The next prime is 20221231249. The reversal of 20221231234 is 43213212202.

It can be written as a sum of positive squares in 3 ways, for example, as 1387786009 + 18833445225 = 37253^2 + 137235^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1351147 + ... + 1366030.

Almost surely, 2^20221231234 is an apocalyptic number.

20221231234 is a deficient number, since it is larger than the sum of its proper divisors (10616021888).

20221231234 is an equidigital number, since it uses as much as digits as its factorization.

20221231234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717301 (or 2717240 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20221231234 its reverse (43213212202), we get a palindrome (63434443436).

The spelling of 20221231234 in words is "twenty billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred thirty-four".