2100212201111 has 16 divisors (see below), whose sum is σ = 2416303272960. Its totient is φ = 1812227437440.

The previous prime is 2100212201099. The next prime is 2100212201123. The reversal of 2100212201111 is 1111022120012.

It is an interprime number because it is at equal distance from previous prime (2100212201099) and next prime (2100212201123).

It is a cyclic number.

It is not a de Polignac number, because 2100212201111 - 2²² = 2100208006807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100212101111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104864261 + ... + 104884286.

It is an arithmetic number, because the mean of its divisors is an integer number (151018954560).

Almost surely, 2^{2100212201111} is an apocalyptic number.

2100212201111 is a deficient number, since it is larger than the sum of its proper divisors (316091071849).

2100212201111 is a wasteful number, since it uses less digits than its factorization.

2100212201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209748614.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2100212201111 its reverse (1111022120012), we get a palindrome (3211234321123).

The spelling of 2100212201111 in words is "two trillion, one hundred billion, two hundred twelve million, two hundred one thousand, one hundred eleven".