122212211122 has 16 divisors (see below), whose sum is σ = 193002596640. Its totient is φ = 57879210528.

The previous prime is 122212211113. The next prime is 122212211129. The reversal of 122212211122 is 221112212221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 122212211122.

It is not an unprimeable number, because it can be changed into a prime (122212211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91008 + ... + 502699.

It is an arithmetic number, because the mean of its divisors is an integer number (12062662290).

Almost surely, 2^122212211122 is an apocalyptic number.

122212211122 is a deficient number, since it is larger than the sum of its proper divisors (70790385518).

122212211122 is a wasteful number, since it uses less digits than its factorization.

122212211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599145.

The product of its digits is 128, while the sum is 19.

Adding to 122212211122 its reverse (221112212221), we get a palindrome (343324423343).

The spelling of 122212211122 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, one hundred twenty-two".