142100243122122 has 48 divisors (see below), whose sum is σ = 320891423361600. Its totient is φ = 47128723817472.

The previous prime is 142100243122021. The next prime is 142100243122127. The reversal of 142100243122122 is 221221342001241.

142100243122122 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 0 + 0 + 2 + 431 + 221 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142100243122127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 734544823 + ... + 734738250.

It is an arithmetic number, because the mean of its divisors is an integer number (6685237986700).

Almost surely, 2^{142100243122122} is an apocalyptic number.

142100243122122 is an abundant number, since it is smaller than the sum of its proper divisors (178791180239478).

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

142100243122122 is a wasteful number, since it uses less digits than its factorization.

142100243122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469283289 (or 1469283277 counting only the distinct ones).

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

Adding to 142100243122122 its reverse (221221342001241), we get a palindrome (363321585123363).

The spelling of 142100243122122 in words is "one hundred forty-two trillion, one hundred billion, two hundred forty-three million, one hundred twenty-two thousand, one hundred twenty-two".