20102220112203 has 12 divisors (see below), whose sum is σ = 29245436136280. Its totient is φ = 13305066548256.

The previous prime is 20102220112189. The next prime is 20102220112213. The reversal of 20102220112203 is 30221102220102.

It is not a de Polignac number, because 20102220112203 - 2¹⁰ = 20102220111179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102220112213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8034459226 + ... + 8034461727.

Almost surely, 2^{20102220112203} is an apocalyptic number.

20102220112203 is a deficient number, since it is larger than the sum of its proper divisors (9143216024077).

20102220112203 is a wasteful number, since it uses less digits than its factorization.

20102220112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16068921098 (or 16068921095 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20102220112203 its reverse (30221102220102), we get a palindrome (50323322332305).

The spelling of 20102220112203 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, two hundred three".