222123120030 has 96 divisors (see below), whose sum is σ = 660320414208. Its totient is φ = 50748120000.

The previous prime is 222123119983. The next prime is 222123120071. The reversal of 222123120030 is 30021321222.

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

It is a junction number, because it is equal to n+sod(n) for n = 222123119985 and 222123120012.

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 47 ways as a sum of consecutive naturals, for example, 1339815 + ... + 1496445.

It is an arithmetic number, because the mean of its divisors is an integer number (6878337648).

Almost surely, 2^222123120030 is an apocalyptic number.

222123120030 is an abundant number, since it is smaller than the sum of its proper divisors (438197294178).

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

222123120030 is a wasteful number, since it uses less digits than its factorization.

222123120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158902 (or 158899 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 222123120030 its reverse (30021321222), we get a palindrome (252144441252).

The spelling of 222123120030 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred twenty thousand, thirty".