211100110122012 has 48 divisors (see below), whose sum is σ = 506335702645920. Its totient is φ = 68403164712192.

The previous prime is 211100110122007. The next prime is 211100110122019. The reversal of 211100110122012 is 210221011001112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211100110121982 and 211100110122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100110122019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213867703 + ... + 214852494.

It is an arithmetic number, because the mean of its divisors is an integer number (10548660471790).

Almost surely, 2^{211100110122012} is an apocalyptic number.

It is an amenable number.

211100110122012 is an abundant number, since it is smaller than the sum of its proper divisors (295235592523908).

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

211100110122012 is a wasteful number, since it uses less digits than its factorization.

211100110122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428721350 (or 428721348 counting only the distinct ones).

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

Adding to 211100110122012 its reverse (210221011001112), we get a palindrome (421321121123124).

The spelling of 211100110122012 in words is "two hundred eleven trillion, one hundred billion, one hundred ten million, one hundred twenty-two thousand, twelve".