312142200121422 has 96 divisors (see below), whose sum is σ = 764954588810880. Its totient is φ = 91120715300160.

The previous prime is 312142200121421. The next prime is 312142200121459. The reversal of 312142200121422 is 224121002241213.

312142200121422 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 4 + 220 + 0 + 12 + 1 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312142200121421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58812088 + ... + 63899499.

It is an arithmetic number, because the mean of its divisors is an integer number (7968276966780).

Almost surely, 2^{312142200121422} is an apocalyptic number.

312142200121422 is an abundant number, since it is smaller than the sum of its proper divisors (452812388689458).

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

312142200121422 is a wasteful number, since it uses less digits than its factorization.

312142200121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122712078 (or 122712075 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 312142200121422 its reverse (224121002241213), we get a palindrome (536263202362635).

The spelling of 312142200121422 in words is "three hundred twelve trillion, one hundred forty-two billion, two hundred million, one hundred twenty-one thousand, four hundred twenty-two".