211430122042 has 8 divisors (see below), whose sum is σ = 317176635636. Its totient is φ = 105704576832.

The previous prime is 211430122031. The next prime is 211430122049. The reversal of 211430122042 is 240221034112.

211430122042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181996945321 + 29433176721 = 426611^2 + 171561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211430122049) 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 3 ways as a sum of consecutive naturals, for example, 5216863 + ... + 5257234.

Almost surely, 2^211430122042 is an apocalyptic number.

211430122042 is a deficient number, since it is larger than the sum of its proper divisors (105746513594).

211430122042 is a wasteful number, since it uses less digits than its factorization.

211430122042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484192.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 211430122042 its reverse (240221034112), we get a palindrome (451651156154).

The spelling of 211430122042 in words is "two hundred eleven billion, four hundred thirty million, one hundred twenty-two thousand, forty-two".