21002133201201 has 6 divisors (see below), whose sum is σ = 30336414623970. Its totient is φ = 14001422134128.

The previous prime is 21002133201191. The next prime is 21002133201223. The reversal of 21002133201201 is 10210233120012.

21002133201201 is a `hidden beast` number, since 2 + 10 + 0 + 213 + 320 + 120 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20818778817600 + 183354383601 = 4562760^2 + 428199^2 .

It is not a de Polignac number, because 21002133201201 - 2¹¹ = 21002133199153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21002133201281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1166785177836 + ... + 1166785177853.

It is an arithmetic number, because the mean of its divisors is an integer number (5056069103995).

Almost surely, 2^{21002133201201} is an apocalyptic number.

It is an amenable number.

21002133201201 is a deficient number, since it is larger than the sum of its proper divisors (9334281422769).

21002133201201 is a wasteful number, since it uses less digits than its factorization.

21002133201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333570355695 (or 2333570355692 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21002133201201 its reverse (10210233120012), we get a palindrome (31212366321213).

The spelling of 21002133201201 in words is "twenty-one trillion, two billion, one hundred thirty-three million, two hundred one thousand, two hundred one".