201211121010012 has 48 divisors (see below), whose sum is σ = 485068920483840. Its totient is φ = 64866896407872.

The previous prime is 201211121010007. The next prime is 201211121010091. The reversal of 201211121010012 is 210010121112102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201211121009973 and 201211121010000.

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, 1356746812 + ... + 1356895107.

It is an arithmetic number, because the mean of its divisors is an integer number (10105602510080).

Almost surely, 2^{201211121010012} is an apocalyptic number.

It is an amenable number.

201211121010012 is an abundant number, since it is smaller than the sum of its proper divisors (283857799473828).

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

201211121010012 is a wasteful number, since it uses less digits than its factorization.

201211121010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713642130 (or 2713642128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201211121010012 its reverse (210010121112102), we get a palindrome (411221242122114).

The spelling of 201211121010012 in words is "two hundred one trillion, two hundred eleven billion, one hundred twenty-one million, ten thousand, twelve".