211244134330 has 8 divisors (see below), whose sum is σ = 380239441812. Its totient is φ = 84497653728.

The previous prime is 211244134291. The next prime is 211244134337. The reversal of 211244134330 is 33431442112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 198793814769 + 12450319561 = 445863^2 + 111581^2 .

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 (211244134337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10562206707 + ... + 10562206726.

Almost surely, 2^211244134330 is an apocalyptic number.

211244134330 is a deficient number, since it is larger than the sum of its proper divisors (168995307482).

211244134330 is a wasteful number, since it uses less digits than its factorization.

211244134330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21124413440.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 211244134330 its reverse (33431442112), we get a palindrome (244675576442).

The spelling of 211244134330 in words is "two hundred eleven billion, two hundred forty-four million, one hundred thirty-four thousand, three hundred thirty".