201111112020012 has 96 divisors (see below), whose sum is σ = 489461352812544. Its totient is φ = 64196438630400.

The previous prime is 201111112019969. The next prime is 201111112020017. The reversal of 201111112020012 is 210020211111102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201111112019973 and 201111112020000.

It is not an unprimeable number, because it can be changed into a prime (201111112020017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250780393 + ... + 251581055.

It is an arithmetic number, because the mean of its divisors is an integer number (5098555758464).

Almost surely, 2^{201111112020012} is an apocalyptic number.

It is an amenable number.

201111112020012 is an abundant number, since it is smaller than the sum of its proper divisors (288350240792532).

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

201111112020012 is a wasteful number, since it uses less digits than its factorization.

201111112020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807759 (or 807757 counting only the distinct ones).

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

Adding to 201111112020012 its reverse (210020211111102), we get a palindrome (411131323131114).

The spelling of 201111112020012 in words is "two hundred one trillion, one hundred eleven billion, one hundred twelve million, twenty thousand, twelve".