211321100212 has 6 divisors (see below), whose sum is σ = 369811925378. Its totient is φ = 105660550104.

The previous prime is 211321100203. The next prime is 211321100231. The reversal of 211321100212 is 212001123112.

211321100212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 198341966736 + 12979133476 = 445356^2 + 113926^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26415137523 + ... + 26415137530.

Almost surely, 2^211321100212 is an apocalyptic number.

It is an amenable number.

211321100212 is a deficient number, since it is larger than the sum of its proper divisors (158490825166).

211321100212 is a wasteful number, since it uses less digits than its factorization.

211321100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830275057 (or 52830275055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211321100212 its reverse (212001123112), we get a palindrome (423322223324).

The spelling of 211321100212 in words is "two hundred eleven billion, three hundred twenty-one million, one hundred thousand, two hundred twelve".