122510221325 has 24 divisors (see below), whose sum is σ = 154401028416. Its totient is φ = 96409040000.

The previous prime is 122510221283. The next prime is 122510221343. The reversal of 122510221325 is 523122015221.

It is a happy number.

It is not a de Polignac number, because 122510221325 - 2¹² = 122510217229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122510221294 and 122510221303.

It is a congruent number.

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, 708425 + ... + 864225.

It is an arithmetic number, because the mean of its divisors is an integer number (6433376184).

Almost surely, 2^122510221325 is an apocalyptic number.

It is an amenable number.

122510221325 is a deficient number, since it is larger than the sum of its proper divisors (31890807091).

122510221325 is a wasteful number, since it uses less digits than its factorization.

122510221325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156325 (or 156320 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 122510221325 its reverse (523122015221), we get a palindrome (645632236546).

The spelling of 122510221325 in words is "one hundred twenty-two billion, five hundred ten million, two hundred twenty-one thousand, three hundred twenty-five".