2100112020111 has 24 divisors (see below), whose sum is σ = 3399489297280. Its totient is φ = 1129472007552.

The previous prime is 2100112020107. The next prime is 2100112020131. The reversal of 2100112020111 is 1110202110012.

It is not a de Polignac number, because 2100112020111 - 2² = 2100112020107 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 (2100112020131) 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 23 ways as a sum of consecutive naturals, for example, 173013541 + ... + 173025678.

Almost surely, 2^{2100112020111} is an apocalyptic number.

2100112020111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2100112020111 is a deficient number, since it is larger than the sum of its proper divisors (1299377277169).

2100112020111 is a wasteful number, since it uses less digits than its factorization.

2100112020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346039263 (or 346039246 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2100112020111 its reverse (1110202110012), we get a palindrome (3210314130123).

The spelling of 2100112020111 in words is "two trillion, one hundred billion, one hundred twelve million, twenty thousand, one hundred eleven".