21334210242004 has 72 divisors (see below), whose sum is σ = 42834761290944. Its totient is φ = 9272922700800.

The previous prime is 21334210241983. The next prime is 21334210242047. The reversal of 21334210242004 is 40024201243312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36523764 + ... + 37103284.

It is an arithmetic number, because the mean of its divisors is an integer number (594927240152).

Almost surely, 2^{21334210242004} is an apocalyptic number.

It is an amenable number.

21334210242004 is an abundant number, since it is smaller than the sum of its proper divisors (21500551048940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21334210242004 is a wasteful number, since it uses less digits than its factorization.

21334210242004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582877 (or 582864 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21334210242004 its reverse (40024201243312), we get a palindrome (61358411485316).

The spelling of 21334210242004 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, two hundred forty-two thousand, four".