21010113212301 has 24 divisors (see below), whose sum is σ = 31074424524000. Its totient is φ = 13671876820896.

The previous prime is 21010113212201. The next prime is 21010113212303. The reversal of 21010113212301 is 10321231101012.

21010113212301 is a `hidden beast` number, since 2 + 10 + 101 + 1 + 321 + 230 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-21010113212301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010113212303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17528526 + ... + 18688751.

It is an arithmetic number, because the mean of its divisors is an integer number (1294767688500).

Almost surely, 2^{21010113212301} is an apocalyptic number.

It is an amenable number.

21010113212301 is a deficient number, since it is larger than the sum of its proper divisors (10064311311699).

21010113212301 is a wasteful number, since it uses less digits than its factorization.

21010113212301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36218825 (or 36218822 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 21010113212301 its reverse (10321231101012), we get a palindrome (31331344313313).

The spelling of 21010113212301 in words is "twenty-one trillion, ten billion, one hundred thirteen million, two hundred twelve thousand, three hundred one".