211211300120300 has 72 divisors (see below), whose sum is σ = 465331820367792. Its totient is φ = 83197200384000.

The previous prime is 211211300120299. The next prime is 211211300120309. The reversal of 211211300120300 is 3021003112112.

It is a super-2 number, since 2×211211300120300² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211300120309) 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 23 ways as a sum of consecutive naturals, for example, 17889386 + ... + 27247985.

Almost surely, 2^{211211300120300} is an apocalyptic number.

211211300120300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211211300120300 is an abundant number, since it is smaller than the sum of its proper divisors (254120520247492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211211300120300 is a wasteful number, since it uses less digits than its factorization.

211211300120300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45138099 (or 45138092 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211211300120300 its reverse (3021003112112), we get a palindrome (214232303232412).

The spelling of 211211300120300 in words is "two hundred eleven trillion, two hundred eleven billion, three hundred million, one hundred twenty thousand, three hundred".