2112101212111 has 32 divisors (see below), whose sum is σ = 2361013401600. Its totient is φ = 1873180282080.

The previous prime is 2112101212093. The next prime is 2112101212139. The reversal of 2112101212111 is 1112121012112.

It is a cyclic number.

It is not a de Polignac number, because 2112101212111 - 2⁹ = 2112101211599 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 (2112101012111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361472556 + ... + 361478398.

It is an arithmetic number, because the mean of its divisors is an integer number (73781668800).

Almost surely, 2^{2112101212111} is an apocalyptic number.

2112101212111 is a deficient number, since it is larger than the sum of its proper divisors (248912189489).

2112101212111 is a wasteful number, since it uses less digits than its factorization.

2112101212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059.

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

Adding to 2112101212111 its reverse (1112121012112), we get a palindrome (3224222224223).

The spelling of 2112101212111 in words is "two trillion, one hundred twelve billion, one hundred one million, two hundred twelve thousand, one hundred eleven".