122152225 has 24 divisors (see below), whose sum is σ = 172723320. Its totient is φ = 84894720.

The previous prime is 122152223. The next prime is 122152237. The reversal of 122152225 is 522251221.

It can be written as a sum of positive squares in 12 ways, for example, as 62615569 + 59536656 = 7913^2 + 7716^2 .

It is not a de Polignac number, because 122152225 - 2¹ = 122152223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122152196 and 122152205.

It is not an unprimeable number, because it can be changed into a prime (122152223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5530 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (7196805).

Almost surely, 2^122152225 is an apocalyptic number.

It is an amenable number.

122152225 is a deficient number, since it is larger than the sum of its proper divisors (50571095).

122152225 is a wasteful number, since it uses less digits than its factorization.

122152225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22149 (or 22144 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 122152225 is about 11052.2497709742. The cubic root of 122152225 is about 496.1737611479.

The spelling of 122152225 in words is "one hundred twenty-two million, one hundred fifty-two thousand, two hundred twenty-five".