21220002110203 has 8 divisors (see below), whose sum is σ = 23032249415168. Its totient is φ = 19433460441024.

The previous prime is 21220002110159. The next prime is 21220002110207. The reversal of 21220002110203 is 30201120002212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21220002110203 is a prime.

It is a super-3 number, since 3×21220002110203³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220002110207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6426407226 + ... + 6426410527.

It is an arithmetic number, because the mean of its divisors is an integer number (2879031176896).

Almost surely, 2^{21220002110203} is an apocalyptic number.

21220002110203 is a deficient number, since it is larger than the sum of its proper divisors (1812247304965).

21220002110203 is a wasteful number, since it uses less digits than its factorization.

21220002110203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12852817893.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21220002110203 its reverse (30201120002212), we get a palindrome (51421122112415).

The spelling of 21220002110203 in words is "twenty-one trillion, two hundred twenty billion, two million, one hundred ten thousand, two hundred three".