21320222104 has 32 divisors (see below), whose sum is σ = 42411870000. Its totient is φ = 10012907520.

The previous prime is 21320222081. The next prime is 21320222153. The reversal of 21320222104 is 40122202312.

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 7 ways as a sum of consecutive naturals, for example, 89217 + ... + 224944.

Almost surely, 2^21320222104 is an apocalyptic number.

It is an amenable number.

21320222104 is a deficient number, since it is larger than the sum of its proper divisors (21091647896).

21320222104 is a wasteful number, since it uses less digits than its factorization.

21320222104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314683 (or 314679 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21320222104 its reverse (40122202312), we get a palindrome (61442424416).

The spelling of 21320222104 in words is "twenty-one billion, three hundred twenty million, two hundred twenty-two thousand, one hundred four".