122222112 has 48 divisors (see below), whose sum is σ = 339710112. Its totient is φ = 38343680.

The previous prime is 122222071. The next prime is 122222131. The reversal of 122222112 is 211222221.

It is a tau number, because it is divible by the number of its divisors (48).

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 = 122222091 and 122222100.

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, 35814 + ... + 39077.

It is an arithmetic number, because the mean of its divisors is an integer number (7077294).

Almost surely, 2^122222112 is an apocalyptic number.

122222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122222112 is an abundant number, since it is smaller than the sum of its proper divisors (217488000).

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

122222112 is a wasteful number, since it uses less digits than its factorization.

122222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74921 (or 74913 counting only the distinct ones).

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

The square root of 122222112 is about 11055.4109828626. The cubic root of 122222112 is about 496.2683684699.

Adding to 122222112 its reverse (211222221), we get a palindrome (333444333).

The spelling of 122222112 in words is "one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".