122221122212 has 24 divisors (see below), whose sum is σ = 246082804800. Its totient is φ = 52028932320.

The previous prime is 122221122119. The next prime is 122221122259. The reversal of 122221122212 is 212221122221.

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

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, 14643614 + ... + 14651957.

It is an arithmetic number, because the mean of its divisors is an integer number (10253450200).

Almost surely, 2^122221122212 is an apocalyptic number.

It is an amenable number.

122221122212 is an abundant number, since it is smaller than the sum of its proper divisors (123861682588).

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

122221122212 is a wasteful number, since it uses less digits than its factorization.

122221122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29295731 (or 29295729 counting only the distinct ones).

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

Adding to 122221122212 its reverse (212221122221), we get a palindrome (334442244433).

Subtracting 122221122212 from its reverse (212221122221), we obtain a palindrome (90000000009).

The spelling of 122221122212 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twelve".