122122111222 has 16 divisors (see below), whose sum is σ = 193050491760. Its totient is φ = 57779484192.

The previous prime is 122122111219. The next prime is 122122111273. The reversal of 122122111222 is 222111221221.

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 122122111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851373 + ... + 1916200.

It is an arithmetic number, because the mean of its divisors is an integer number (12065655735).

Almost surely, 2^122122111222 is an apocalyptic number.

122122111222 is a deficient number, since it is larger than the sum of its proper divisors (70928380538).

122122111222 is a wasteful number, since it uses less digits than its factorization.

122122111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768447.

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

Adding to 122122111222 its reverse (222111221221), we get a palindrome (344233332443).

The spelling of 122122111222 in words is "one hundred twenty-two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".