212211330121 has 8 divisors (see below), whose sum is σ = 242537073984. Its totient is φ = 181888046160.

The previous prime is 212211330109. The next prime is 212211330127. The reversal of 212211330121 is 121033112212.

212211330121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212211330121 - 2¹⁷ = 212211199049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211330127) 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 7 ways as a sum of consecutive naturals, for example, 426250 + ... + 778531.

It is an arithmetic number, because the mean of its divisors is an integer number (30317134248).

Almost surely, 2^212211330121 is an apocalyptic number.

It is an amenable number.

212211330121 is a deficient number, since it is larger than the sum of its proper divisors (30325743863).

212211330121 is a wasteful number, since it uses less digits than its factorization.

212211330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229951.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212211330121 its reverse (121033112212), we get a palindrome (333244442333).

The spelling of 212211330121 in words is "two hundred twelve billion, two hundred eleven million, three hundred thirty thousand, one hundred twenty-one".