2122120105 has 8 divisors (see below), whose sum is σ = 2910336192. Its totient is φ = 1455168048.

The previous prime is 2122120103. The next prime is 2122120111. The reversal of 2122120105 is 5010212212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122120105 - 2¹ = 2122120103 is a prime.

It is a super-2 number, since 2×2122120105² = 9006787480090422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122120103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30315967 + ... + 30316036.

It is an arithmetic number, because the mean of its divisors is an integer number (363792024).

Almost surely, 2^2122120105 is an apocalyptic number.

It is an amenable number.

2122120105 is a deficient number, since it is larger than the sum of its proper divisors (788216087).

2122120105 is an equidigital number, since it uses as much as digits as its factorization.

2122120105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60632015.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2122120105 is about 46066.4748488529. The cubic root of 2122120105 is about 1285.0597468019.

Adding to 2122120105 its reverse (5010212212), we get a palindrome (7132332317).

The spelling of 2122120105 in words is "two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred five".