111211100000210 has 64 divisors (see below), whose sum is σ = 229770508660992. Its totient is φ = 37963971634176.

The previous prime is 111211100000173. The next prime is 111211100000219. The reversal of 111211100000210 is 12000001112111.

It is a junction number, because it is equal to n+sod(n) for n = 111211100000191 and 111211100000200.

It is not an unprimeable number, because it can be changed into a prime (111211100000219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346965542 + ... + 347285918.

It is an arithmetic number, because the mean of its divisors is an integer number (3590164197828).

Almost surely, 2^{111211100000210} is an apocalyptic number.

111211100000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211100000210 is an abundant number, since it is smaller than the sum of its proper divisors (118559408660782).

111211100000210 is a wasteful number, since it uses less digits than its factorization.

111211100000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341907.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111211100000210 its reverse (12000001112111), we get a palindrome (123211101112321).

The spelling of 111211100000210 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred million, two hundred ten", and thus it is an aban number.