211100330121 has 32 divisors (see below), whose sum is σ = 284088960000. Its totient is φ = 139430351808.

The previous prime is 211100330117. The next prime is 211100330149. The reversal of 211100330121 is 121033001112.

It is a happy number.

It is not a de Polignac number, because 211100330121 - 2² = 211100330117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211100330121.

It is not an unprimeable number, because it can be changed into a prime (211100330521) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 273091891 + ... + 273092663.

It is an arithmetic number, because the mean of its divisors is an integer number (8877780000).

Almost surely, 2^211100330121 is an apocalyptic number.

It is an amenable number.

211100330121 is a deficient number, since it is larger than the sum of its proper divisors (72988629879).

211100330121 is a wasteful number, since it uses less digits than its factorization.

211100330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 211100330121 its reverse (121033001112), we get a palindrome (332133331233).

The spelling of 211100330121 in words is "two hundred eleven billion, one hundred million, three hundred thirty thousand, one hundred twenty-one".