42235123212 has 72 divisors (see below), whose sum is σ = 107183434176. Its totient is φ = 14022789984.

The previous prime is 42235123207. The next prime is 42235123223. The reversal of 42235123212 is 21232153224.

42235123212 is a `hidden beast` number, since 422 + 3 + 5 + 1 + 23 + 212 = 666.

It is an unprimeable number.

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, 10808163 + ... + 10812069.

It is an arithmetic number, because the mean of its divisors is an integer number (1488658808).

Almost surely, 2^42235123212 is an apocalyptic number.

It is an amenable number.

42235123212 is an abundant number, since it is smaller than the sum of its proper divisors (64948310964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42235123212 is a wasteful number, since it uses less digits than its factorization.

42235123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027 (or 5022 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 42235123212 its reverse (21232153224), we get a palindrome (63467276436).

The spelling of 42235123212 in words is "forty-two billion, two hundred thirty-five million, one hundred twenty-three thousand, two hundred twelve".