201121021212210 has 96 divisors (see below), whose sum is σ = 570454920667008. Its totient is φ = 48756391580160.

The previous prime is 201121021212169. The next prime is 201121021212247. The reversal of 201121021212210 is 12212120121102.

201121021212210 is a `hidden beast` number, since 2 + 0 + 11 + 210 + 21 + 212 + 210 = 666.

201121021212210 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 374766634 + ... + 375302906.

It is an arithmetic number, because the mean of its divisors is an integer number (5942238756948).

Almost surely, 2^{201121021212210} is an apocalyptic number.

201121021212210 is an abundant number, since it is smaller than the sum of its proper divisors (369333899454798).

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

201121021212210 is a wasteful number, since it uses less digits than its factorization.

201121021212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915120 (or 915117 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201121021212210 its reverse (12212120121102), we get a palindrome (213333141333312).

The spelling of 201121021212210 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-one million, two hundred twelve thousand, two hundred ten".