201000020121212 has 48 divisors (see below), whose sum is σ = 378948104243520. Its totient is φ = 92734869123072.

The previous prime is 201000020121167. The next prime is 201000020121223. The reversal of 201000020121212 is 212121020000102.

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 15 ways as a sum of consecutive naturals, for example, 1656865214 + ... + 1656986522.

It is an arithmetic number, because the mean of its divisors is an integer number (7894752171740).

Almost surely, 2^{201000020121212} is an apocalyptic number.

It is an amenable number.

201000020121212 is a deficient number, since it is larger than the sum of its proper divisors (177948084122308).

201000020121212 is a wasteful number, since it uses less digits than its factorization.

201000020121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132870 (or 132868 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201000020121212 its reverse (212121020000102), we get a palindrome (413121040121314).

The spelling of 201000020121212 in words is "two hundred one trillion, twenty million, one hundred twenty-one thousand, two hundred twelve".