21200022210203 has 4 divisors (see below), whose sum is σ = 21202635955488. Its totient is φ = 21197408464920.

The previous prime is 21200022210197. The next prime is 21200022210209. The reversal of 21200022210203 is 30201222000212.

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

It is an interprime number because it is at equal distance from previous prime (21200022210197) and next prime (21200022210209).

It is a cyclic number.

It is not a de Polignac number, because 21200022210203 - 2¹⁸ = 21200021948059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200022210209) 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, 1306860476 + ... + 1306876697.

It is an arithmetic number, because the mean of its divisors is an integer number (5300658988872).

Almost surely, 2^{21200022210203} is an apocalyptic number.

21200022210203 is a deficient number, since it is larger than the sum of its proper divisors (2613745285).

21200022210203 is an equidigital number, since it uses as much as digits as its factorization.

21200022210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613745284.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21200022210203 its reverse (30201222000212), we get a palindrome (51401244210415).

The spelling of 21200022210203 in words is "twenty-one trillion, two hundred billion, twenty-two million, two hundred ten thousand, two hundred three".