21422004104 has 16 divisors (see below), whose sum is σ = 40200811920. Its totient is φ = 10701787600.

The previous prime is 21422004101. The next prime is 21422004167. The reversal of 21422004104 is 40140022412.

It is not an unprimeable number, because it can be changed into a prime (21422004101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141922 + ... + 1160529.

It is an arithmetic number, because the mean of its divisors is an integer number (2512550745).

Almost surely, 2^21422004104 is an apocalyptic number.

It is an amenable number.

21422004104 is a deficient number, since it is larger than the sum of its proper divisors (18778807816).

21422004104 is a wasteful number, since it uses less digits than its factorization.

21422004104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303620 (or 2303616 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21422004104 its reverse (40140022412), we get a palindrome (61562026516).

The spelling of 21422004104 in words is "twenty-one billion, four hundred twenty-two million, four thousand, one hundred four".