202103121212 has 24 divisors (see below), whose sum is σ = 359234044176. Its totient is φ = 99473614848.

The previous prime is 202103121173. The next prime is 202103121257. The reversal of 202103121212 is 212121301202.

202103121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1006853 + ... + 1190780.

It is an arithmetic number, because the mean of its divisors is an integer number (14968085174).

Almost surely, 2^202103121212 is an apocalyptic number.

It is an amenable number.

202103121212 is a deficient number, since it is larger than the sum of its proper divisors (157130922964).

202103121212 is a wasteful number, since it uses less digits than its factorization.

202103121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197997 (or 2197995 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 202103121212 its reverse (212121301202), we get a palindrome (414224422414).

The spelling of 202103121212 in words is "two hundred two billion, one hundred three million, one hundred twenty-one thousand, two hundred twelve".