202121212100012 has 12 divisors (see below), whose sum is σ = 353716447919016. Its totient is φ = 101059369837440.

The previous prime is 202121212099999. The next prime is 202121212100083. The reversal of 202121212100012 is 210001212121202.

202121212100012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308685218 + ... + 309339305.

It is an arithmetic number, because the mean of its divisors is an integer number (29476370659918).

Almost surely, 2^{202121212100012} is an apocalyptic number.

It is an amenable number.

202121212100012 is a deficient number, since it is larger than the sum of its proper divisors (151595235819004).

202121212100012 is a wasteful number, since it uses less digits than its factorization.

202121212100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618106288 (or 618106286 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202121212100012 its reverse (210001212121202), we get a palindrome (412122424221214).

The spelling of 202121212100012 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twelve million, one hundred thousand, twelve".