212143052042 has 4 divisors (see below), whose sum is σ = 318214578066. Its totient is φ = 106071526020.

The previous prime is 212143052039. The next prime is 212143052063. The reversal of 212143052042 is 240250341212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 190428377161 + 21714674881 = 436381^2 + 147359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53035763009 + ... + 53035763012.

Almost surely, 2^212143052042 is an apocalyptic number.

212143052042 is a deficient number, since it is larger than the sum of its proper divisors (106071526024).

212143052042 is a wasteful number, since it uses less digits than its factorization.

212143052042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106071526023.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 212143052042 its reverse (240250341212), we get a palindrome (452393393254).

The spelling of 212143052042 in words is "two hundred twelve billion, one hundred forty-three million, fifty-two thousand, forty-two".