123240422212 has 24 divisors (see below), whose sum is σ = 218762149536. Its totient is φ = 60740304768.

The previous prime is 123240422203. The next prime is 123240422213. The reversal of 123240422212 is 212224042321.

123240422212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (123240422213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271893 + ... + 566044.

It is an arithmetic number, because the mean of its divisors is an integer number (9115089564).

Almost surely, 2^123240422212 is an apocalyptic number.

It is an amenable number.

123240422212 is a deficient number, since it is larger than the sum of its proper divisors (95521727324).

123240422212 is a wasteful number, since it uses less digits than its factorization.

123240422212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838467 (or 838465 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 123240422212 its reverse (212224042321), we get a palindrome (335464464533).

The spelling of 123240422212 in words is "one hundred twenty-three billion, two hundred forty million, four hundred twenty-two thousand, two hundred twelve".