21010200201299 has 4 divisors (see below), whose sum is σ = 21014081640336. Its totient is φ = 21006318762264.

The previous prime is 21010200201257. The next prime is 21010200201373. The reversal of 21010200201299 is 99210200201012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21010200201299 - 2¹⁶ = 21010200135763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010200201209) 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 3 ways as a sum of consecutive naturals, for example, 1940711399 + ... + 1940722224.

It is an arithmetic number, because the mean of its divisors is an integer number (5253520410084).

Almost surely, 2^{21010200201299} is an apocalyptic number.

21010200201299 is a deficient number, since it is larger than the sum of its proper divisors (3881439037).

21010200201299 is an equidigital number, since it uses as much as digits as its factorization.

21010200201299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881439036.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 21010200201299 in words is "twenty-one trillion, ten billion, two hundred million, two hundred one thousand, two hundred ninety-nine".