322112220 has 48 divisors (see below), whose sum is σ = 905216928. Its totient is φ = 85582080.

The previous prime is 322112207. The next prime is 322112233. The reversal of 322112220 is 22211223.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (322112207) and next prime (322112233).

It is a super-4 number, since 4×322112220⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 322112220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6930 + ... + 26310.

It is an arithmetic number, because the mean of its divisors is an integer number (18858686).

Almost surely, 2^322112220 is an apocalyptic number.

322112220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

322112220 is an abundant number, since it is smaller than the sum of its proper divisors (583104708).

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

322112220 is a wasteful number, since it uses less digits than its factorization.

322112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19670 (or 19668 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 322112220 is about 17947.4850605872. The cubic root of 322112220 is about 685.4920151376.

Adding to 322112220 its reverse (22211223), we get a palindrome (344323443).

The spelling of 322112220 in words is "three hundred twenty-two million, one hundred twelve thousand, two hundred twenty".