15106321011225 has 24 divisors (see below), whose sum is σ = 24976276888192. Its totient is φ = 8056545566400.

The previous prime is 15106321011161. The next prime is 15106321011251. The reversal of 15106321011225 is 52211012360151.

It is not a de Polignac number, because 15106321011225 - 2⁶ = 15106321011161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15106321011192 and 15106321011201.

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, 1889235 + ... + 5812215.

Almost surely, 2^{15106321011225} is an apocalyptic number.

15106321011225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15106321011225 is a deficient number, since it is larger than the sum of its proper divisors (9869955876967).

15106321011225 is a wasteful number, since it uses less digits than its factorization.

15106321011225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974337 (or 3974332 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 15106321011225 its reverse (52211012360151), we get a palindrome (67317333371376).

The spelling of 15106321011225 in words is "fifteen trillion, one hundred six billion, three hundred twenty-one million, eleven thousand, two hundred twenty-five".