201121112012212 has 48 divisors (see below), whose sum is σ = 422750664161280. Its totient is φ = 81854018829792.

The previous prime is 201121112012179. The next prime is 201121112012231. The reversal of 201121112012212 is 212210211121102.

It is a happy number.

201121112012212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201121112012212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123291288 + ... + 1123470319.

It is an arithmetic number, because the mean of its divisors is an integer number (8807305503360).

Almost surely, 2^{201121112012212} is an apocalyptic number.

It is an amenable number.

201121112012212 is an abundant number, since it is smaller than the sum of its proper divisors (221629552149068).

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

201121112012212 is a wasteful number, since it uses less digits than its factorization.

201121112012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246761780 (or 2246761778 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201121112012212 its reverse (212210211121102), we get a palindrome (413331323133314).

The spelling of 201121112012212 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twelve million, twelve thousand, two hundred twelve".