122232222 has 96 divisors (see below), whose sum is σ = 312242112. Its totient is φ = 33841152.

The previous prime is 122232221. The next prime is 122232239. The reversal of 122232222 is 222232221.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 = 122232195 and 122232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122232221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 892138 + ... + 892274.

It is an arithmetic number, because the mean of its divisors is an integer number (3252522).

Almost surely, 2^122232222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122232222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156121056).

122232222 is an abundant number, since it is smaller than the sum of its proper divisors (190009890).

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

122232222 is a wasteful number, since it uses less digits than its factorization.

122232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 319 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 122232222 is about 11055.8682155677. The cubic root of 122232222 is about 496.2820515774.

Adding to 122232222 its reverse (222232221), we get a palindrome (344464443).

Subtracting 122232222 from its reverse (222232221), we obtain a palindrome (99999999).

The spelling of 122232222 in words is "one hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty-two".