211142012334 has 64 divisors (see below), whose sum is σ = 477636445440. Its totient is φ = 61636440320.

The previous prime is 211142012321. The next prime is 211142012359. The reversal of 211142012334 is 433210241112.

211142012334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 723394 + ... + 972410.

It is an arithmetic number, because the mean of its divisors is an integer number (7463069460).

Almost surely, 2^211142012334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211142012334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238818222720).

211142012334 is an abundant number, since it is smaller than the sum of its proper divisors (266494433106).

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

211142012334 is a wasteful number, since it uses less digits than its factorization.

211142012334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249505.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211142012334 its reverse (433210241112), we get a palindrome (644352253446).

The spelling of 211142012334 in words is "two hundred eleven billion, one hundred forty-two million, twelve thousand, three hundred thirty-four".