2112100111210 has 8 divisors (see below), whose sum is σ = 3801780200196. Its totient is φ = 844840044480.

The previous prime is 2112100111183. The next prime is 2112100111223. The reversal of 2112100111210 is 121110012112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2028149105161 + 83951006049 = 1424131^2 + 289743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 105605005551 + ... + 105605005570.

Almost surely, 2^{2112100111210} is an apocalyptic number.

2112100111210 is a deficient number, since it is larger than the sum of its proper divisors (1689680088986).

2112100111210 is a wasteful number, since it uses less digits than its factorization.

2112100111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211210011128.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2112100111210 its reverse (121110012112), we get a palindrome (2233210123322).

The spelling of 2112100111210 in words is "two trillion, one hundred twelve billion, one hundred million, one hundred eleven thousand, two hundred ten".