4201324244021 has 2 divisors, whose sum is σ = 4201324244022. Its totient is φ = 4201324244020.

The previous prime is 4201324243979. The next prime is 4201324244023. The reversal of 4201324244021 is 1204424231024.

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., 3104044948900 + 1097279295121 = 1761830^2 + 1047511^2 .

It is a cyclic number.

It is not a de Polignac number, because 4201324244021 - 2²⁶ = 4201257135157 is a prime.

It is a super-2 number, since 2×4201324244021² (a number of 26 digits) contains 22 as substring.

Together with 4201324244023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4201324244023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100662122010 + 2100662122011.

It is an arithmetic number, because the mean of its divisors is an integer number (2100662122011).

Almost surely, 2^{4201324244021} is an apocalyptic number.

It is an amenable number.

4201324244021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4201324244021 is an equidigital number, since it uses as much as digits as its factorization.

4201324244021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 4201324244021 its reverse (1204424231024), we get a palindrome (5405748475045).

The spelling of 4201324244021 in words is "four trillion, two hundred one billion, three hundred twenty-four million, two hundred forty-four thousand, twenty-one".