122122110211 has 4 divisors (see below), whose sum is σ = 122163328872. Its totient is φ = 122080891552.

The previous prime is 122122110181. The next prime is 122122110251. The reversal of 122122110211 is 112011221221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112011221221 = 290533 ⋅385537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122122110211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122110251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20604886 + ... + 20610811.

It is an arithmetic number, because the mean of its divisors is an integer number (30540832218).

Almost surely, 2^122122110211 is an apocalyptic number.

122122110211 is a deficient number, since it is larger than the sum of its proper divisors (41218661).

122122110211 is an equidigital number, since it uses as much as digits as its factorization.

122122110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41218660.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122122110211 its reverse (112011221221), we get a palindrome (234133331432).

The spelling of 122122110211 in words is "one hundred twenty-two billion, one hundred twenty-two million, one hundred ten thousand, two hundred eleven".