221442242244122 has 4 divisors (see below), whose sum is σ = 332163363366186. Its totient is φ = 110721121122060.

The previous prime is 221442242244077. The next prime is 221442242244137.

221442242244122 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 209614771530241 + 11827470713881 = 14478079^2 + 3439109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55360560561029 + ... + 55360560561032.

Almost surely, 2^{221442242244122} is an apocalyptic number.

221442242244122 is a deficient number, since it is larger than the sum of its proper divisors (110721121122064).

221442242244122 is a wasteful number, since it uses less digits than its factorization.

221442242244122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110721121122063.

The product of its digits is 262144, while the sum is 38.

The spelling of 221442242244122 in words is "two hundred twenty-one trillion, four hundred forty-two billion, two hundred forty-two million, two hundred forty-four thousand, one hundred twenty-two".