2122210312111 has 4 divisors (see below), whose sum is σ = 2129123049592. Its totient is φ = 2115297574632.

The previous prime is 2122210312097. The next prime is 2122210312141. The reversal of 2122210312111 is 1112130122212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122210312111 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 (2122210312141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456368280 + ... + 3456368893.

It is an arithmetic number, because the mean of its divisors is an integer number (532280762398).

Almost surely, 2^{2122210312111} is an apocalyptic number.

2122210312111 is a deficient number, since it is larger than the sum of its proper divisors (6912737481).

2122210312111 is an equidigital number, since it uses as much as digits as its factorization.

2122210312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912737480.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2122210312111 its reverse (1112130122212), we get a palindrome (3234340434323).

It can be divided in two parts, 2122210 and 312111, that added together give a triangular number (2434321 = T₂₂₀₆).

The spelling of 2122210312111 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, three hundred twelve thousand, one hundred eleven".