21120201102203 has 8 divisors (see below), whose sum is σ = 24160382584800. Its totient is φ = 18085772093760.

The previous prime is 21120201102193. The next prime is 21120201102227. The reversal of 21120201102203 is 30220110202112.

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

It is not a de Polignac number, because 21120201102203 - 2⁸ = 21120201101947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21120201102263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438110668 + ... + 1438125353.

It is an arithmetic number, because the mean of its divisors is an integer number (3020047823100).

Almost surely, 2^{21120201102203} is an apocalyptic number.

21120201102203 is a deficient number, since it is larger than the sum of its proper divisors (3040181482597).

21120201102203 is a wasteful number, since it uses less digits than its factorization.

21120201102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876237077.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21120201102203 its reverse (30220110202112), we get a palindrome (51340311304315).

Subtracting 21120201102203 from its reverse (30220110202112), we obtain a palindrome (9099909099909).

The spelling of 21120201102203 in words is "twenty-one trillion, one hundred twenty billion, two hundred one million, one hundred two thousand, two hundred three".