122222112212 has 24 divisors (see below), whose sum is σ = 225171256800. Its totient is φ = 57888189216.

The previous prime is 122222112203. The next prime is 122222112293. The reversal of 122222112212 is 212211222221.

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

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, 629114 + ... + 800142.

It is an arithmetic number, because the mean of its divisors is an integer number (9382135700).

Almost surely, 2^122222112212 is an apocalyptic number.

It is an amenable number.

122222112212 is a deficient number, since it is larger than the sum of its proper divisors (102949144588).

122222112212 is a wasteful number, since it uses less digits than its factorization.

122222112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180455 (or 180453 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

Adding to 122222112212 its reverse (212211222221), we get a palindrome (334433334433).

The spelling of 122222112212 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twelve".