2112101211211 has 4 divisors (see below), whose sum is σ = 2112104238712. Its totient is φ = 2112098183712.

The previous prime is 2112101211161. The next prime is 2112101211263. The reversal of 2112101211211 is 1121121012112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2112101211211 - 2¹³ = 2112101203019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112101511211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121651 + ... + 2058883.

It is an arithmetic number, because the mean of its divisors is an integer number (528026059678).

Almost surely, 2^{2112101211211} is an apocalyptic number.

2112101211211 is a deficient number, since it is larger than the sum of its proper divisors (3027501).

2112101211211 is a wasteful number, since it uses less digits than its factorization.

2112101211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027500.

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

Adding to 2112101211211 its reverse (1121121012112), we get a palindrome (3233222223323).

It can be divided in two parts, 21121012112 and 11, that multiplied together give a palindrome (232331133232).

The spelling of 2112101211211 in words is "two trillion, one hundred twelve billion, one hundred one million, two hundred eleven thousand, two hundred eleven".