100101212120211 has 4 divisors (see below), whose sum is σ = 133468282826952. Its totient is φ = 66734141413472.

The previous prime is 100101212120197. The next prime is 100101212120237. The reversal of 100101212120211 is 112021212101001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100101212120211 - 2¹⁰ = 100101212119187 is a prime.

It is a super-3 number, since 3×100101212120211³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100101212120011) 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 3 ways as a sum of consecutive naturals, for example, 16683535353366 + ... + 16683535353371.

It is an arithmetic number, because the mean of its divisors is an integer number (33367070706738).

Almost surely, 2^{100101212120211} is an apocalyptic number.

100101212120211 is a deficient number, since it is larger than the sum of its proper divisors (33367070706741).

100101212120211 is an equidigital number, since it uses as much as digits as its factorization.

100101212120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367070706740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100101212120211 its reverse (112021212101001), we get a palindrome (212122424221212).

The spelling of 100101212120211 in words is "one hundred trillion, one hundred one billion, two hundred twelve million, one hundred twenty thousand, two hundred eleven".