22044233421 has 96 divisors (see below), whose sum is σ = 39663157248. Its totient is φ = 11511452160.

The previous prime is 22044233417. The next prime is 22044233423. The reversal of 22044233421 is 12433244022.

22044233421 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 4 + 233 + 421 = 666.

It is not a de Polignac number, because 22044233421 - 2² = 22044233417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044233423) 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 95 ways as a sum of consecutive naturals, for example, 6592476 + ... + 6595818.

It is an arithmetic number, because the mean of its divisors is an integer number (413157888).

Almost surely, 2^22044233421 is an apocalyptic number.

22044233421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22044233421 is a deficient number, since it is larger than the sum of its proper divisors (17618923827).

22044233421 is a wasteful number, since it uses less digits than its factorization.

22044233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22044233421 its reverse (12433244022), we get a palindrome (34477477443).

The spelling of 22044233421 in words is "twenty-two billion, forty-four million, two hundred thirty-three thousand, four hundred twenty-one".