21234110204 has 12 divisors (see below), whose sum is σ = 37257742200. Its totient is φ = 10589041008.

The previous prime is 21234110159. The next prime is 21234110221. The reversal of 21234110204 is 40201143212.

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, 7001819 + ... + 7004850.

It is an arithmetic number, because the mean of its divisors is an integer number (3104811850).

Almost surely, 2^21234110204 is an apocalyptic number.

It is an amenable number.

21234110204 is a deficient number, since it is larger than the sum of its proper divisors (16023631996).

21234110204 is a wasteful number, since it uses less digits than its factorization.

21234110204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14007052 (or 14007050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21234110204 its reverse (40201143212), we get a palindrome (61435253416).

The spelling of 21234110204 in words is "twenty-one billion, two hundred thirty-four million, one hundred ten thousand, two hundred four".