201111020012112 has 80 divisors (see below), whose sum is σ = 595173424796160. Its totient is φ = 57323154658176.

The previous prime is 201111020012081. The next prime is 201111020012143. The reversal of 201111020012112 is 211210020111102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201111020012081) and next prime (201111020012143).

It is a super-2 number, since 2×201111020012112² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201111020012091 and 201111020012100.

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, 714113038 + ... + 714394605.

It is an arithmetic number, because the mean of its divisors is an integer number (7439667809952).

Almost surely, 2^{201111020012112} is an apocalyptic number.

It is an amenable number.

201111020012112 is an abundant number, since it is smaller than the sum of its proper divisors (394062404784048).

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

201111020012112 is a wasteful number, since it uses less digits than its factorization.

201111020012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428508080 (or 1428508074 counting only the distinct ones).

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

Adding to 201111020012112 its reverse (211210020111102), we get a palindrome (412321040123214).

The spelling of 201111020012112 in words is "two hundred one trillion, one hundred eleven billion, twenty million, twelve thousand, one hundred twelve".