222104212445 has 4 divisors (see below), whose sum is σ = 266525054940. Its totient is φ = 177683369952.

The previous prime is 222104212439. The next prime is 222104212459. The reversal of 222104212445 is 544212401222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147226457401 + 74877755044 = 383701^2 + 273638^2 .

It is a cyclic number.

It is not a de Polignac number, because 222104212445 - 2¹² = 222104208349 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 22210421240 + ... + 22210421249.

It is an arithmetic number, because the mean of its divisors is an integer number (66631263735).

Almost surely, 2^222104212445 is an apocalyptic number.

It is an amenable number.

222104212445 is a deficient number, since it is larger than the sum of its proper divisors (44420842495).

222104212445 is an equidigital number, since it uses as much as digits as its factorization.

222104212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44420842494.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 222104212445 its reverse (544212401222), we get a palindrome (766316613667).

The spelling of 222104212445 in words is "two hundred twenty-two billion, one hundred four million, two hundred twelve thousand, four hundred forty-five".