21344222104 has 16 divisors (see below), whose sum is σ = 40090513320. Its totient is φ = 10653418560.

The previous prime is 21344222089. The next prime is 21344222113. The reversal of 21344222104 is 40122244312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331709 + ... + 2340844.

Almost surely, 2^21344222104 is an apocalyptic number.

It is an amenable number.

21344222104 is a deficient number, since it is larger than the sum of its proper divisors (18746291216).

21344222104 is a wasteful number, since it uses less digits than its factorization.

21344222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673130 (or 4673126 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 21344222104 its reverse (40122244312), we get a palindrome (61466466416).

The spelling of 21344222104 in words is "twenty-one billion, three hundred forty-four million, two hundred twenty-two thousand, one hundred four".