2100111200212 has 6 divisors (see below), whose sum is σ = 3675194600378. Its totient is φ = 1050055600104.

The previous prime is 2100111200153. The next prime is 2100111200281. The reversal of 2100111200212 is 2120021110012.

It can be written as a sum of positive squares in only one way, i.e., 1861494581956 + 238616618256 = 1364366^2 + 488484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100111200192 and 2100111200201.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 262513900023 + ... + 262513900030.

Almost surely, 2^{2100111200212} is an apocalyptic number.

It is an amenable number.

2100111200212 is a deficient number, since it is larger than the sum of its proper divisors (1575083400166).

2100111200212 is a wasteful number, since it uses less digits than its factorization.

2100111200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525027800057 (or 525027800055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2100111200212 its reverse (2120021110012), we get a palindrome (4220132310224).

The spelling of 2100111200212 in words is "two trillion, one hundred billion, one hundred eleven million, two hundred thousand, two hundred twelve".