202021210021012 has 12 divisors (see below), whose sum is σ = 353549299014016. Its totient is φ = 101007124588440.

The previous prime is 202021210021009. The next prime is 202021210021153. The reversal of 202021210021012 is 210120012120202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869974914 + ... + 870207097.

Almost surely, 2^{202021210021012} is an apocalyptic number.

It is an amenable number.

202021210021012 is a deficient number, since it is larger than the sum of its proper divisors (151528088993004).

202021210021012 is a wasteful number, since it uses less digits than its factorization.

202021210021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740211038 (or 1740211036 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202021210021012 its reverse (210120012120202), we get a palindrome (412141222141214).

The spelling of 202021210021012 in words is "two hundred two trillion, twenty-one billion, two hundred ten million, twenty-one thousand, twelve".