100421412425 has 12 divisors (see below), whose sum is σ = 128816433420. Its totient is φ = 77566883520.

The previous prime is 100421412409. The next prime is 100421412457. The reversal of 100421412425 is 524214124001.

It can be written as a sum of positive squares in 6 ways, for example, as 8722065664 + 91699346761 = 93392^2 + 302819^2 .

It is not a de Polignac number, because 100421412425 - 2⁴ = 100421412409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100421412394 and 100421412403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69255422 + ... + 69256871.

It is an arithmetic number, because the mean of its divisors is an integer number (10734702785).

Almost surely, 2^100421412425 is an apocalyptic number.

It is an amenable number.

100421412425 is a deficient number, since it is larger than the sum of its proper divisors (28395020995).

100421412425 is a wasteful number, since it uses less digits than its factorization.

100421412425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138512332 (or 138512327 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 100421412425 its reverse (524214124001), we get a palindrome (624635536426).

The spelling of 100421412425 in words is "one hundred billion, four hundred twenty-one million, four hundred twelve thousand, four hundred twenty-five".