244241052421 has 2 divisors, whose sum is σ = 244241052422. Its totient is φ = 244241052420.

The previous prime is 244241052409. The next prime is 244241052431. The reversal of 244241052421 is 124250142442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212533908196 + 31707144225 = 461014^2 + 178065^2 .

It is a cyclic number.

It is not a de Polignac number, because 244241052421 - 2²⁹ = 243704181509 is a prime.

It is a super-2 number, since 2×244241052421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244241052431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122120526210 + 122120526211.

It is an arithmetic number, because the mean of its divisors is an integer number (122120526211).

Almost surely, 2^244241052421 is an apocalyptic number.

It is an amenable number.

244241052421 is a deficient number, since it is larger than the sum of its proper divisors (1).

244241052421 is an equidigital number, since it uses as much as digits as its factorization.

244241052421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 244241052421 its reverse (124250142442), we get a palindrome (368491194863).

The spelling of 244241052421 in words is "two hundred forty-four billion, two hundred forty-one million, fifty-two thousand, four hundred twenty-one".