10216421025 has 24 divisors (see below), whose sum is σ = 16897725024. Its totient is φ = 5446636800.

The previous prime is 10216420993. The next prime is 10216421053. The reversal of 10216421025 is 52012461201.

It is not a de Polignac number, because 10216421025 - 2⁵ = 10216420993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10216420986 and 10216421004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177865 + ... + 228185.

It is an arithmetic number, because the mean of its divisors is an integer number (704071876).

Almost surely, 2^10216421025 is an apocalyptic number.

10216421025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10216421025 is a deficient number, since it is larger than the sum of its proper divisors (6681303999).

10216421025 is a wasteful number, since it uses less digits than its factorization.

10216421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53041 (or 53036 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 10216421025 its reverse (52012461201), we get a palindrome (62228882226).

The spelling of 10216421025 in words is "ten billion, two hundred sixteen million, four hundred twenty-one thousand, twenty-five".