442121102204 has 6 divisors (see below), whose sum is σ = 773711928864. Its totient is φ = 221060551100.

The previous prime is 442121102201. The next prime is 442121102231. The reversal of 442121102204 is 402201121244.

It is a self number, because there is not a number n which added to its sum of digits gives 442121102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442121102201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55265137772 + ... + 55265137779.

It is an arithmetic number, because the mean of its divisors is an integer number (128951988144).

Almost surely, 2^442121102204 is an apocalyptic number.

It is an amenable number.

442121102204 is a deficient number, since it is larger than the sum of its proper divisors (331590826660).

442121102204 is a wasteful number, since it uses less digits than its factorization.

442121102204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110530275555 (or 110530275553 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 442121102204 its reverse (402201121244), we get a palindrome (844322223448).

The spelling of 442121102204 in words is "four hundred forty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred four".