21010122010304 has 28 divisors (see below), whose sum is σ = 47647955274384. Its totient is φ = 9004338004224.

The previous prime is 21010122010247. The next prime is 21010122010307. The reversal of 21010122010304 is 40301022101012.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (21010122010307) 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, 23448796439 + ... + 23448797334.

Almost surely, 2^{21010122010304} is an apocalyptic number.

It is an amenable number.

21010122010304 is an abundant number, since it is smaller than the sum of its proper divisors (26637833264080).

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

21010122010304 is an equidigital number, since it uses as much as digits as its factorization.

21010122010304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46897593792 (or 46897593782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21010122010304 its reverse (40301022101012), we get a palindrome (61311144111316).

The spelling of 21010122010304 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, ten thousand, three hundred four".