211112201100012 has 48 divisors (see below), whose sum is σ = 518533400246400. Its totient is φ = 66665441715840.

The previous prime is 211112201099953. The next prime is 211112201100049. The reversal of 211112201100012 is 210001102211112.

It is a happy number.

It is a super-2 number, since 2×211112201100012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211112201099964 and 211112201100000.

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, 1169914 + ... + 20581377.

It is an arithmetic number, because the mean of its divisors is an integer number (10802779171800).

Almost surely, 2^{211112201100012} is an apocalyptic number.

It is an amenable number.

211112201100012 is an abundant number, since it is smaller than the sum of its proper divisors (307421199146388).

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

211112201100012 is a wasteful number, since it uses less digits than its factorization.

211112201100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21793886 (or 21793884 counting only the distinct ones).

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

Adding to 211112201100012 its reverse (210001102211112), we get a palindrome (421113303311124).

The spelling of 211112201100012 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred one million, one hundred thousand, twelve".