211100112123012 has 36 divisors (see below), whose sum is σ = 609844768356096. Its totient is φ = 60314317749360.

The previous prime is 211100112123011. The next prime is 211100112123013. The reversal of 211100112123012 is 210321211001112.

It is a happy number.

211100112123012 is a `hidden beast` number, since 211 + 100 + 1 + 121 + 230 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (211100112123011) and next prime (211100112123013).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211100112123011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418849428564 + ... + 418849429067.

It is an arithmetic number, because the mean of its divisors is an integer number (16940132454336).

Almost surely, 2^{211100112123012} is an apocalyptic number.

It is an amenable number.

211100112123012 is an abundant number, since it is smaller than the sum of its proper divisors (398744656233084).

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

211100112123012 is a wasteful number, since it uses less digits than its factorization.

211100112123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837698857648 (or 837698857643 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 211100112123012 its reverse (210321211001112), we get a palindrome (421421323124124).

The spelling of 211100112123012 in words is "two hundred eleven trillion, one hundred billion, one hundred twelve million, one hundred twenty-three thousand, twelve".