211211300120330 has 16 divisors (see below), whose sum is σ = 380180608226280. Its totient is φ = 84484460490432.

The previous prime is 211211300120311. The next prime is 211211300120347. The reversal of 211211300120330 is 33021003112112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 211187714225401 + 23585894929 = 14532299^2 + 153577^2 .

It is a super-2 number, since 2×211211300120330² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9227912 + ... + 22529468.

Almost surely, 2^{211211300120330} is an apocalyptic number.

211211300120330 is a deficient number, since it is larger than the sum of its proper divisors (168969308105950).

211211300120330 is a wasteful number, since it uses less digits than its factorization.

211211300120330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889433.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211211300120330 its reverse (33021003112112), we get a palindrome (244232303232442).

The spelling of 211211300120330 in words is "two hundred eleven trillion, two hundred eleven billion, three hundred million, one hundred twenty thousand, three hundred thirty".