221233222124 has 12 divisors (see below), whose sum is σ = 407534883000. Its totient is φ = 104794684128.

The previous prime is 221233222123. The next prime is 221233222129. The reversal of 221233222124 is 421222332122.

It is a junction number, because it is equal to n+sod(n) for n = 221233222093 and 221233222102.

It is not an unprimeable number, because it can be changed into a prime (221233222123) by changing a digit.

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, 1455481649 + ... + 1455481800.

It is an arithmetic number, because the mean of its divisors is an integer number (33961240250).

Almost surely, 2^221233222124 is an apocalyptic number.

It is an amenable number.

221233222124 is a deficient number, since it is larger than the sum of its proper divisors (186301660876).

221233222124 is a wasteful number, since it uses less digits than its factorization.

221233222124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910963472 (or 2910963470 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 221233222124 its reverse (421222332122), we get a palindrome (642455554246).

The spelling of 221233222124 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred twenty-two thousand, one hundred twenty-four".