2112212441111 has 4 divisors (see below), whose sum is σ = 2112653132832. Its totient is φ = 2111771749392.

The previous prime is 2112212441089. The next prime is 2112212441147. The reversal of 2112212441111 is 1111442122112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112212441111 - 2¹⁴ = 2112212424727 is a prime.

It is a super-2 number, since 2×2112212441111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112212441411) 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, 220338671 + ... + 220348256.

It is an arithmetic number, because the mean of its divisors is an integer number (528163283208).

Almost surely, 2^{2112212441111} is an apocalyptic number.

2112212441111 is a deficient number, since it is larger than the sum of its proper divisors (440691721).

2112212441111 is an equidigital number, since it uses as much as digits as its factorization.

2112212441111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440691720.

The product of its digits is 256, while the sum is 23.

Adding to 2112212441111 its reverse (1111442122112), we get a palindrome (3223654563223).

The spelling of 2112212441111 in words is "two trillion, one hundred twelve billion, two hundred twelve million, four hundred forty-one thousand, one hundred eleven".