4224421100045 has 16 divisors (see below), whose sum is σ = 5245833967920. Its totient is φ = 3261927782400.

The previous prime is 4224421100033. The next prime is 4224421100051. The reversal of 4224421100045 is 5400011244224.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 535632233161 + 3688788866884 = 731869^2 + 1920622^2 .

It is not a de Polignac number, because 4224421100045 - 2⁶ = 4224421099981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 4224421099990 and 4224421100017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4349246 + ... + 5231135.

It is an arithmetic number, because the mean of its divisors is an integer number (327864622995).

Almost surely, 2^{4224421100045} is an apocalyptic number.

It is an amenable number.

4224421100045 is a deficient number, since it is larger than the sum of its proper divisors (1021412867875).

4224421100045 is a wasteful number, since it uses less digits than its factorization.

4224421100045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583456.

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

Adding to 4224421100045 its reverse (5400011244224), we get a palindrome (9624432344269).

The spelling of 4224421100045 in words is "four trillion, two hundred twenty-four billion, four hundred twenty-one million, one hundred thousand, forty-five".