212011222120203 has 16 divisors (see below), whose sum is σ = 312982645412736. Its totient is φ = 126573863951040.

The previous prime is 212011222120151. The next prime is 212011222120253. The reversal of 212011222120203 is 302021222110212.

It is not a de Polignac number, because 212011222120203 - 2¹⁴ = 212011222103819 is a prime.

It is a super-2 number, since 2×212011222120203² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212011222120203.

It is not an unprimeable number, because it can be changed into a prime (212011222120253) 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 15 ways as a sum of consecutive naturals, for example, 47944643226 + ... + 47944647647.

It is an arithmetic number, because the mean of its divisors is an integer number (19561415338296).

Almost surely, 2^{212011222120203} is an apocalyptic number.

212011222120203 is a deficient number, since it is larger than the sum of its proper divisors (100971423292533).

212011222120203 is a wasteful number, since it uses less digits than its factorization.

212011222120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95889290954.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212011222120203 its reverse (302021222110212), we get a palindrome (514032444230415).

Subtracting 212011222120203 from its reverse (302021222110212), we obtain a palindrome (90009999990009).

The spelling of 212011222120203 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, two hundred three".