21244232344001 has 2 divisors, whose sum is σ = 21244232344002. Its totient is φ = 21244232344000.

The previous prime is 21244232343967. The next prime is 21244232344039. The reversal of 21244232344001 is 10044323244212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20463174093376 + 781058250625 = 4523624^2 + 883775^2 .

It is a cyclic number.

It is not a de Polignac number, because 21244232344001 - 2⁴² = 16846185832897 is a prime.

It is not a weakly prime, because it can be changed into another prime (21244232344301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10622116172000 + 10622116172001.

It is an arithmetic number, because the mean of its divisors is an integer number (10622116172001).

Almost surely, 2^{21244232344001} is an apocalyptic number.

It is an amenable number.

21244232344001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21244232344001 is an equidigital number, since it uses as much as digits as its factorization.

21244232344001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 21244232344001 its reverse (10044323244212), we get a palindrome (31288555588213).

The spelling of 21244232344001 in words is "twenty-one trillion, two hundred forty-four billion, two hundred thirty-two million, three hundred forty-four thousand, one".