322212222 has 64 divisors (see below), whose sum is σ = 761280000. Its totient is φ = 100730304.

The previous prime is 322212211. The next prime is 322212227. The reversal of 322212222 is 222212223.

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 = 322212195 and 322212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322212227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104154 + ... + 107202.

It is an arithmetic number, because the mean of its divisors is an integer number (11895000).

Almost surely, 2^322212222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322212222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380640000).

322212222 is an abundant number, since it is smaller than the sum of its proper divisors (439067778).

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

322212222 is a wasteful number, since it uses less digits than its factorization.

322212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182 (or 3176 counting only the distinct ones).

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

The square root of 322212222 is about 17950.2708057567. The cubic root of 322212222 is about 685.5629464005.

Adding to 322212222 its reverse (222212223), we get a palindrome (544424445).

Subtracting from 322212222 its reverse (222212223), we obtain a palindrome (99999999).

It can be divided in two parts, 32221 and 2222, that added together give a palindrome (34443).

The spelling of 322212222 in words is "three hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".