220442144474 has 4 divisors (see below), whose sum is σ = 330663216714. Its totient is φ = 110221072236.

The previous prime is 220442144431. The next prime is 220442144479. The reversal of 220442144474 is 474441244022.

220442144474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 128697975025 + 91744169449 = 358745^2 + 302893^2 .

It is not an unprimeable number, because it can be changed into a prime (220442144479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110536117 + ... + 55110536120.

Almost surely, 2^220442144474 is an apocalyptic number.

220442144474 is a deficient number, since it is larger than the sum of its proper divisors (110221072240).

220442144474 is a wasteful number, since it uses less digits than its factorization.

220442144474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110221072239.

The product of its (nonzero) digits is 229376, while the sum is 38.

Adding to 220442144474 its reverse (474441244022), we get a palindrome (694883388496).

The spelling of 220442144474 in words is "two hundred twenty billion, four hundred forty-two million, one hundred forty-four thousand, four hundred seventy-four".