211140124242 has 16 divisors (see below), whose sum is σ = 444505524960. Its totient is φ = 66675828672.

The previous prime is 211140124229. The next prime is 211140124259. The reversal of 211140124242 is 242421041112.

It is a happy number.

211140124242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926053063 + ... + 926053290.

It is an arithmetic number, because the mean of its divisors is an integer number (27781595310).

Almost surely, 2^211140124242 is an apocalyptic number.

211140124242 is an abundant number, since it is smaller than the sum of its proper divisors (233365400718).

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

211140124242 is a wasteful number, since it uses less digits than its factorization.

211140124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852106377.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211140124242 its reverse (242421041112), we get a palindrome (453561165354).

The spelling of 211140124242 in words is "two hundred eleven billion, one hundred forty million, one hundred twenty-four thousand, two hundred forty-two".