201021112212 has 24 divisors (see below), whose sum is σ = 470874363456. Its totient is φ = 66746308608.

The previous prime is 201021112207. The next prime is 201021112247. The reversal of 201021112212 is 212211120102.

It is a junction number, because it is equal to n+sod(n) for n = 201021112191 and 201021112200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32587888 + ... + 32594055.

It is an arithmetic number, because the mean of its divisors is an integer number (19619765144).

Almost surely, 2^201021112212 is an apocalyptic number.

It is an amenable number.

201021112212 is an abundant number, since it is smaller than the sum of its proper divisors (269853251244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201021112212 is a wasteful number, since it uses less digits than its factorization.

201021112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65182207 (or 65182205 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201021112212 its reverse (212211120102), we get a palindrome (413232232314).

The spelling of 201021112212 in words is "two hundred one billion, twenty-one million, one hundred twelve thousand, two hundred twelve".