4021444423201 has 2 divisors, whose sum is σ = 4021444423202. Its totient is φ = 4021444423200.

The previous prime is 4021444423109. The next prime is 4021444423231. The reversal of 4021444423201 is 1023244441204.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3236490950625 + 784953472576 = 1799025^2 + 885976^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021444423201 - 2²¹ = 4021442326049 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021444423231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010722211600 + 2010722211601.

It is an arithmetic number, because the mean of its divisors is an integer number (2010722211601).

Almost surely, 2^{4021444423201} is an apocalyptic number.

It is an amenable number.

4021444423201 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021444423201 is an equidigital number, since it uses as much as digits as its factorization.

4021444423201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4021444423201 its reverse (1023244441204), we get a palindrome (5044688864405).

The spelling of 4021444423201 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred twenty-three thousand, two hundred one".