21412244201 has 2 divisors, whose sum is σ = 21412244202. Its totient is φ = 21412244200.

The previous prime is 21412244179. The next prime is 21412244233. The reversal of 21412244201 is 10244221412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11175661225 + 10236582976 = 105715^2 + 101176^2 .

It is a cyclic number.

It is not a de Polignac number, because 21412244201 - 2¹⁴ = 21412227817 is a prime.

It is not a weakly prime, because it can be changed into another prime (21412244251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706122100 + 10706122101.

It is an arithmetic number, because the mean of its divisors is an integer number (10706122101).

Almost surely, 2^21412244201 is an apocalyptic number.

It is an amenable number.

21412244201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21412244201 is an equidigital number, since it uses as much as digits as its factorization.

21412244201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21412244201 its reverse (10244221412), we get a palindrome (31656465613).

The spelling of 21412244201 in words is "twenty-one billion, four hundred twelve million, two hundred forty-four thousand, two hundred one".