42111212401988 has 24 divisors (see below), whose sum is σ = 75106184852160. Its totient is φ = 20652525709920.

The previous prime is 42111212401987. The next prime is 42111212402023. The reversal of 42111212401988 is 88910421211124.

42111212401988 is digitally balanced in base 2, 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 (42111212401987) 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 7 ways as a sum of consecutive naturals, for example, 27151898 + ... + 28660913.

It is an arithmetic number, because the mean of its divisors is an integer number (3129424368840).

Almost surely, 2^{42111212401988} is an apocalyptic number.

It is an amenable number.

42111212401988 is a deficient number, since it is larger than the sum of its proper divisors (32994972450172).

42111212401988 is a wasteful number, since it uses less digits than its factorization.

42111212401988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55816427 (or 55816425 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 44.

The spelling of 42111212401988 in words is "forty-two trillion, one hundred eleven billion, two hundred twelve million, four hundred one thousand, nine hundred eighty-eight".