211444220142 has 12 divisors (see below), whose sum is σ = 458129143680. Its totient is φ = 70481406708.

The previous prime is 211444220047. The next prime is 211444220147. The reversal of 211444220142 is 241022444112.

211444220142 is a `hidden beast` number, since 2 + 1 + 14 + 442 + 201 + 4 + 2 = 666.

211444220142 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 not an unprimeable number, because it can be changed into a prime (211444220147) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5873450542 + ... + 5873450577.

It is an arithmetic number, because the mean of its divisors is an integer number (38177428640).

Almost surely, 2^211444220142 is an apocalyptic number.

211444220142 is an abundant number, since it is smaller than the sum of its proper divisors (246684923538).

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

211444220142 is a wasteful number, since it uses less digits than its factorization.

211444220142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746901127 (or 11746901124 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 211444220142 its reverse (241022444112), we get a palindrome (452466664254).

The spelling of 211444220142 in words is "two hundred eleven billion, four hundred forty-four million, two hundred twenty thousand, one hundred forty-two".