212101202020203 has 6 divisors (see below), whose sum is σ = 306368402918084. Its totient is φ = 141400801346796.

The previous prime is 212101202020159. The next prime is 212101202020237. The reversal of 212101202020203 is 302020202101212.

It is not a de Polignac number, because 212101202020203 - 2⁴⁵ = 176916829931371 is a prime.

It is a super-2 number, since 2×212101202020203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212101202020243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11783400112225 + ... + 11783400112242.

Almost surely, 2^{212101202020203} is an apocalyptic number.

212101202020203 is a deficient number, since it is larger than the sum of its proper divisors (94267200897881).

212101202020203 is a wasteful number, since it uses less digits than its factorization.

212101202020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23566800224473 (or 23566800224470 counting only the distinct ones).

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

Adding to 212101202020203 its reverse (302020202101212), we get a palindrome (514121404121415).

The spelling of 212101202020203 in words is "two hundred twelve trillion, one hundred one billion, two hundred two million, twenty thousand, two hundred three".