20212213100203 has 4 divisors (see below), whose sum is σ = 20216266085560. Its totient is φ = 20208160114848.

The previous prime is 20212213100129. The next prime is 20212213100207. The reversal of 20212213100203 is 30200131221202.

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 20212213100203 - 2⁹ = 20212213099691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212213100207) 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, 2026485198 + ... + 2026495171.

It is an arithmetic number, because the mean of its divisors is an integer number (5054066521390).

Almost surely, 2^{20212213100203} is an apocalyptic number.

20212213100203 is a deficient number, since it is larger than the sum of its proper divisors (4052985357).

20212213100203 is an equidigital number, since it uses as much as digits as its factorization.

20212213100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052985356.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20212213100203 its reverse (30200131221202), we get a palindrome (50412344321405).

The spelling of 20212213100203 in words is "twenty trillion, two hundred twelve billion, two hundred thirteen million, one hundred thousand, two hundred three".