20221235444 has 12 divisors (see below), whose sum is σ = 36140080704. Its totient is φ = 9895498104.

The previous prime is 20221235413. The next prime is 20221235453. The reversal of 20221235444 is 44453212202.

It is a congruent number.

It is an unprimeable number.

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, 53779694 + ... + 53780069.

It is an arithmetic number, because the mean of its divisors is an integer number (3011673392).

Almost surely, 2^20221235444 is an apocalyptic number.

It is an amenable number.

20221235444 is a deficient number, since it is larger than the sum of its proper divisors (15918845260).

20221235444 is a wasteful number, since it uses less digits than its factorization.

20221235444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107559814 (or 107559812 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 20221235444 its reverse (44453212202), we get a palindrome (64674447646).

The spelling of 20221235444 in words is "twenty billion, two hundred twenty-one million, two hundred thirty-five thousand, four hundred forty-four".