122221222112 has 48 divisors (see below), whose sum is σ = 266801142384. Its totient is φ = 54644352000.

The previous prime is 122221222091. The next prime is 122221222147. The reversal of 122221222112 is 211222122221.

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, 2824589 + ... + 2867532.

It is an arithmetic number, because the mean of its divisors is an integer number (5558357133).

Almost surely, 2^122221222112 is an apocalyptic number.

It is an amenable number.

122221222112 is an abundant number, since it is smaller than the sum of its proper divisors (144579920272).

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

122221222112 is a wasteful number, since it uses less digits than its factorization.

122221222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692203 (or 5692195 counting only the distinct ones).

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

Adding to 122221222112 its reverse (211222122221), we get a palindrome (333443344333).

The spelling of 122221222112 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twelve".