2112122102111 has 4 divisors (see below), whose sum is σ = 2413853830992. Its totient is φ = 1810390373232.

The previous prime is 2112122102039. The next prime is 2112122102119. The reversal of 2112122102111 is 1112012212112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2112122102111 - 2²⁶ = 2112054993247 is a prime.

It is a super-2 number, since 2×2112122102111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112122102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112122102119) 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, 150865864430 + ... + 150865864443.

It is an arithmetic number, because the mean of its divisors is an integer number (603463457748).

Almost surely, 2^{2112122102111} is an apocalyptic number.

2112122102111 is a deficient number, since it is larger than the sum of its proper divisors (301731728881).

2112122102111 is an equidigital number, since it uses as much as digits as its factorization.

2112122102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301731728880.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2112122102111 its reverse (1112012212112), we get a palindrome (3224134314223).

The spelling of 2112122102111 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, one hundred two thousand, one hundred eleven".