212302120203 has 16 divisors (see below), whose sum is σ = 314538492960. Its totient is φ = 141527171808.

The previous prime is 212302120169. The next prime is 212302120211. The reversal of 212302120203 is 302021203212.

212302120203 is a `hidden beast` number, since 21 + 230 + 212 + 0 + 203 = 666.

It is not a de Polignac number, because 212302120203 - 2⁶ = 212302120139 is a prime.

It is a super-2 number, since 2×212302120203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212302120403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328501 + ... + 729737.

It is an arithmetic number, because the mean of its divisors is an integer number (19658655810).

Almost surely, 2^212302120203 is an apocalyptic number.

212302120203 is a deficient number, since it is larger than the sum of its proper divisors (102236372757).

212302120203 is a wasteful number, since it uses less digits than its factorization.

212302120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420843 (or 420837 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212302120203 its reverse (302021203212), we get a palindrome (514323323415).

The spelling of 212302120203 in words is "two hundred twelve billion, three hundred two million, one hundred twenty thousand, two hundred three".