1820133222 has 8 divisors (see below), whose sum is σ = 3640266456. Its totient is φ = 606711072.

The previous prime is 1820133199. The next prime is 1820133239. The reversal of 1820133222 is 2223310281.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1820133222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1820133192 and 1820133201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151677763 + ... + 151677774.

It is an arithmetic number, because the mean of its divisors is an integer number (455033307).

Almost surely, 2^1820133222 is an apocalyptic number.

1820133222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1820133222 is a wasteful number, since it uses less digits than its factorization.

1820133222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303355542.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1820133222 is about 42663.0193727542. The cubic root of 1820133222 is about 1220.9589392440.

The spelling of 1820133222 in words is "one billion, eight hundred twenty million, one hundred thirty-three thousand, two hundred twenty-two".