222120222030 has 128 divisors (see below), whose sum is σ = 683510630400. Its totient is φ = 50277376512.

The previous prime is 222120222017. The next prime is 222120222041. The reversal of 222120222030 is 30222021222.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222120221994 and 222120222012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 375835 + ... + 765174.

It is an arithmetic number, because the mean of its divisors is an integer number (5339926800).

Almost surely, 2^222120222030 is an apocalyptic number.

222120222030 is an abundant number, since it is smaller than the sum of its proper divisors (461390408370).

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

222120222030 is a wasteful number, since it uses less digits than its factorization.

222120222030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141135 (or 1141129 counting only the distinct ones).

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

Adding to 222120222030 its reverse (30222021222), we get a palindrome (252342243252).

The spelling of 222120222030 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, thirty".