21322301204 has 12 divisors (see below), whose sum is σ = 39508970004. Its totient is φ = 10034024064.

The previous prime is 21322301191. The next prime is 21322301219. The reversal of 21322301204 is 40210322312.

It can be written as a sum of positive squares in 2 ways, for example, as 10311996304 + 11010304900 = 101548^2 + 104930^2 .

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, 156781559 + ... + 156781694.

It is an arithmetic number, because the mean of its divisors is an integer number (3292414167).

Almost surely, 2^21322301204 is an apocalyptic number.

It is an amenable number.

21322301204 is a deficient number, since it is larger than the sum of its proper divisors (18186668800).

21322301204 is a wasteful number, since it uses less digits than its factorization.

21322301204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313563274 (or 313563272 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21322301204 its reverse (40210322312), we get a palindrome (61532623516).

The spelling of 21322301204 in words is "twenty-one billion, three hundred twenty-two million, three hundred one thousand, two hundred four".