124221451001 has 2 divisors, whose sum is σ = 124221451002. Its totient is φ = 124221451000.

The previous prime is 124221450959. The next prime is 124221451021. The reversal of 124221451001 is 100154122421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115888499776 + 8332951225 = 340424^2 + 91285^2 .

It is a cyclic number.

It is not a de Polignac number, because 124221451001 - 2¹⁸ = 124221188857 is a prime.

It is not a weakly prime, because it can be changed into another prime (124221451021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62110725500 + 62110725501.

It is an arithmetic number, because the mean of its divisors is an integer number (62110725501).

Almost surely, 2^124221451001 is an apocalyptic number.

It is an amenable number.

124221451001 is a deficient number, since it is larger than the sum of its proper divisors (1).

124221451001 is an equidigital number, since it uses as much as digits as its factorization.

124221451001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 124221451001 its reverse (100154122421), we get a palindrome (224375573422).

The spelling of 124221451001 in words is "one hundred twenty-four billion, two hundred twenty-one million, four hundred fifty-one thousand, one".