122212212 has 24 divisors (see below), whose sum is σ = 287688576. Its totient is φ = 40376448.

The previous prime is 122212193. The next prime is 122212213. The reversal of 122212212 is 212212221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122212191 and 122212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212213) 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, 43708 + ... + 46419.

It is an arithmetic number, because the mean of its divisors is an integer number (11987024).

Almost surely, 2^122212212 is an apocalyptic number.

122212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122212212 is an abundant number, since it is smaller than the sum of its proper divisors (165476364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122212212 is a wasteful number, since it uses less digits than its factorization.

122212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90247 (or 90245 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 122212212 is about 11054.9632292469. The cubic root of 122212212 is about 496.2549688501.

Adding to 122212212 its reverse (212212221), we get a palindrome (334424433).

Subtracting 122212212 from its reverse (212212221), we obtain a palindrome (90000009).

The spelling of 122212212 in words is "one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".