211210322242 has 4 divisors (see below), whose sum is σ = 316815483366. Its totient is φ = 105605161120.

The previous prime is 211210322179. The next prime is 211210322243. The reversal of 211210322242 is 242223012112.

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., 124262595081 + 86947727161 = 352509^2 + 294869^2 .

It is not an unprimeable number, because it can be changed into a prime (211210322243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52802580559 + ... + 52802580562.

Almost surely, 2^211210322242 is an apocalyptic number.

211210322242 is a deficient number, since it is larger than the sum of its proper divisors (105605161124).

211210322242 is a wasteful number, since it uses less digits than its factorization.

211210322242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105605161123.

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

Adding to 211210322242 its reverse (242223012112), we get a palindrome (453433334354).

The spelling of 211210322242 in words is "two hundred eleven billion, two hundred ten million, three hundred twenty-two thousand, two hundred forty-two".