42542440122 has 32 divisors (see below), whose sum is σ = 104719853952. Its totient is φ = 11219984064.

The previous prime is 42542440103. The next prime is 42542440133. The reversal of 42542440122 is 22104424524.

It is a self number, because there is not a number n which added to its sum of digits gives 42542440122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38957733 + ... + 38958824.

It is an arithmetic number, because the mean of its divisors is an integer number (3272495436).

Almost surely, 2^42542440122 is an apocalyptic number.

42542440122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42542440122 is an abundant number, since it is smaller than the sum of its proper divisors (62177413830).

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

42542440122 is a wasteful number, since it uses less digits than its factorization.

42542440122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77916582.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 42542440122 its reverse (22104424524), we get a palindrome (64646864646).

The spelling of 42542440122 in words is "forty-two billion, five hundred forty-two million, four hundred forty thousand, one hundred twenty-two".