222448428618 has 32 divisors (see below), whose sum is σ = 482059104576. Its totient is φ = 68025754368.

The previous prime is 222448428581. The next prime is 222448428619. The reversal of 222448428618 is 816824844222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222448428619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8735455 + ... + 8760882.

It is an arithmetic number, because the mean of its divisors is an integer number (15064347018).

Almost surely, 2^222448428618 is an apocalyptic number.

222448428618 is an abundant number, since it is smaller than the sum of its proper divisors (259610675958).

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

222448428618 is a wasteful number, since it uses less digits than its factorization.

222448428618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17496518.

The product of its digits is 3145728, while the sum is 51.

The spelling of 222448428618 in words is "two hundred twenty-two billion, four hundred forty-eight million, four hundred twenty-eight thousand, six hundred eighteen".