124244010221 has 2 divisors, whose sum is σ = 124244010222. Its totient is φ = 124244010220.

The previous prime is 124244010197. The next prime is 124244010223. The reversal of 124244010221 is 122010442421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120554784100 + 3689226121 = 347210^2 + 60739^2 .

It is a cyclic number.

It is not a de Polignac number, because 124244010221 - 2¹⁸ = 124243748077 is a prime.

Together with 124244010223, 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 (124244010223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62122005110 + 62122005111.

It is an arithmetic number, because the mean of its divisors is an integer number (62122005111).

Almost surely, 2^124244010221 is an apocalyptic number.

It is an amenable number.

124244010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124244010221 is an equidigital number, since it uses as much as digits as its factorization.

124244010221 is an evil number, because the sum of its binary digits is even.

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

Adding to 124244010221 its reverse (122010442421), we get a palindrome (246254452642).

The spelling of 124244010221 in words is "one hundred twenty-four billion, two hundred forty-four million, ten thousand, two hundred twenty-one".