125424221441 has 4 divisors (see below), whose sum is σ = 125664038832. Its totient is φ = 125184404052.

The previous prime is 125424221431. The next prime is 125424221459. The reversal of 125424221441 is 144122424521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144122424521 = 67 ⋅2151080963.

It is a cyclic number.

It is not a de Polignac number, because 125424221441 - 2¹⁰ = 125424220417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125424221398 and 125424221407.

It is not an unprimeable number, because it can be changed into a prime (125424221401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119907911 + ... + 119908956.

It is an arithmetic number, because the mean of its divisors is an integer number (31416009708).

Almost surely, 2^125424221441 is an apocalyptic number.

It is an amenable number.

125424221441 is a deficient number, since it is larger than the sum of its proper divisors (239817391).

125424221441 is an equidigital number, since it uses as much as digits as its factorization.

125424221441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239817390.

The product of its digits is 20480, while the sum is 32.

Adding to 125424221441 its reverse (144122424521), we get a palindrome (269546645962).

The spelling of 125424221441 in words is "one hundred twenty-five billion, four hundred twenty-four million, two hundred twenty-one thousand, four hundred forty-one".