201211120012 has 72 divisors (see below), whose sum is σ = 456529575600. Its totient is φ = 76889143296.

The previous prime is 201211120003. The next prime is 201211120057. The reversal of 201211120012 is 210021112102.

201211120012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201211119974 and 201211120001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1525837 + ... + 1652452.

It is an arithmetic number, because the mean of its divisors is an integer number (6340688550).

Almost surely, 2^201211120012 is an apocalyptic number.

It is an amenable number.

201211120012 is an abundant number, since it is smaller than the sum of its proper divisors (255318455588).

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

201211120012 is a wasteful number, since it uses less digits than its factorization.

201211120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178343 (or 3178334 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201211120012 its reverse (210021112102), we get a palindrome (411232232114).

The spelling of 201211120012 in words is "two hundred one billion, two hundred eleven million, one hundred twenty thousand, twelve".