222060666600 has 72 divisors (see below), whose sum is σ = 745753744710. Its totient is φ = 59216177280.

The previous prime is 222060666599. The next prime is 222060666623. The reversal of 222060666600 is 6666060222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 99713219076 + 122347447524 = 315774^2 + 349782^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 17 ways as a sum of consecutive naturals, for example, 61681719 + ... + 61685318.

Almost surely, 2^222060666600 is an apocalyptic number.

222060666600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222060666600 is an abundant number, since it is smaller than the sum of its proper divisors (523693078110).

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

222060666600 is a wasteful number, since it uses less digits than its factorization.

222060666600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123367059 (or 123367047 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 222060666600 in words is "two hundred twenty-two billion, sixty million, six hundred sixty-six thousand, six hundred".