124221004025 has 6 divisors (see below), whose sum is σ = 154034045022. Its totient is φ = 99376803200.

The previous prime is 124221003989. The next prime is 124221004027. The reversal of 124221004025 is 520400122421.

It can be written as a sum of positive squares in 3 ways, for example, as 19314328576 + 104906675449 = 138976^2 + 323893^2 .

It is not a de Polignac number, because 124221004025 - 2⁸ = 124221003769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124221004027) 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 in 5 ways as a sum of consecutive naturals, for example, 2484420056 + ... + 2484420105.

It is an arithmetic number, because the mean of its divisors is an integer number (25672340837).

Almost surely, 2^124221004025 is an apocalyptic number.

It is an amenable number.

124221004025 is a deficient number, since it is larger than the sum of its proper divisors (29813040997).

124221004025 is an equidigital number, since it uses as much as digits as its factorization.

124221004025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968840171 (or 4968840166 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 124221004025 its reverse (520400122421), we get a palindrome (644621126446).

The spelling of 124221004025 in words is "one hundred twenty-four billion, two hundred twenty-one million, four thousand, twenty-five".