222505999968 has 48 divisors (see below), whose sum is σ = 667518001920. Its totient is φ = 63573142656.

The previous prime is 222505999943. The next prime is 222506000009. The reversal of 222505999968 is 869999505222.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 222505999899 and 222505999908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165554388 + ... + 165555731.

It is an arithmetic number, because the mean of its divisors is an integer number (13906625040).

Almost surely, 2^222505999968 is an apocalyptic number.

222505999968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222505999968 is an abundant number, since it is smaller than the sum of its proper divisors (445012001952).

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

222505999968 is a wasteful number, since it uses less digits than its factorization.

222505999968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331110139 (or 331110131 counting only the distinct ones).

The product of its (nonzero) digits is 62985600, while the sum is 66.

The spelling of 222505999968 in words is "two hundred twenty-two billion, five hundred five million, nine hundred ninety-nine thousand, nine hundred sixty-eight".