201211120212 has 24 divisors (see below), whose sum is σ = 475149153696. Its totient is φ = 66262296288.

The previous prime is 201211120153. The next prime is 201211120217. The reversal of 201211120212 is 212021112102.

It is a junction number, because it is equal to n+sod(n) for n = 201211120191 and 201211120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211120217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101008603 + ... + 101010594.

It is an arithmetic number, because the mean of its divisors is an integer number (19797881404).

Almost surely, 2^201211120212 is an apocalyptic number.

It is an amenable number.

201211120212 is an abundant number, since it is smaller than the sum of its proper divisors (273938033484).

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

201211120212 is a wasteful number, since it uses less digits than its factorization.

201211120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202019287 (or 202019285 counting only the distinct ones).

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

Adding to 201211120212 its reverse (212021112102), we get a palindrome (413232232314).

The spelling of 201211120212 in words is "two hundred one billion, two hundred eleven million, one hundred twenty thousand, two hundred twelve".