122217025 has 72 divisors (see below), whose sum is σ = 190836000. Its totient is φ = 77172480.

The previous prime is 122216999. The next prime is 122217037. The reversal of 122217025 is 520712221.

It is not a de Polignac number, because 122217025 - 2¹¹ = 122214977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122216987 and 122217005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1373181 + ... + 1373269.

It is an arithmetic number, because the mean of its divisors is an integer number (2650500).

Almost surely, 2^122217025 is an apocalyptic number.

It is an amenable number.

122217025 is a deficient number, since it is larger than the sum of its proper divisors (68618975).

122217025 is a wasteful number, since it uses less digits than its factorization.

122217025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 122217025 is about 11055.1809121335. The cubic root of 122217025 is about 496.2614833213.

Adding to 122217025 its reverse (520712221), we get a palindrome (642929246).

The spelling of 122217025 in words is "one hundred twenty-two million, two hundred seventeen thousand, twenty-five".