123001212225 has 24 divisors (see below), whose sum is σ = 215324477280. Its totient is φ = 61741784320.

The previous prime is 123001212223. The next prime is 123001212227. The reversal of 123001212225 is 522212100321.

It is an interprime number because it is at equal distance from previous prime (123001212223) and next prime (123001212227).

It is not a de Polignac number, because 123001212225 - 2¹ = 123001212223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123001212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48234495 + ... + 48237044.

It is an arithmetic number, because the mean of its divisors is an integer number (8971853220).

Almost surely, 2^123001212225 is an apocalyptic number.

123001212225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123001212225 is a deficient number, since it is larger than the sum of its proper divisors (92323265055).

123001212225 is a wasteful number, since it uses less digits than its factorization.

123001212225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96471569 (or 96471564 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 123001212225 its reverse (522212100321), we get a palindrome (645213312546).

The spelling of 123001212225 in words is "one hundred twenty-three billion, one million, two hundred twelve thousand, two hundred twenty-five".