100211100001211 has 4 divisors (see below), whose sum is σ = 101418462651912. Its totient is φ = 99003737350512.

The previous prime is 100211100001193. The next prime is 100211100001241. The reversal of 100211100001211 is 112100001112001.

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 100211100001211 - 2¹⁸ = 100211099739067 is a prime.

It is a super-2 number, since 2×100211100001211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100211100001192 and 100211100001201.

It is not an unprimeable number, because it can be changed into a prime (100211100001241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603681325226 + ... + 603681325391.

It is an arithmetic number, because the mean of its divisors is an integer number (25354615662978).

Almost surely, 2^{100211100001211} is an apocalyptic number.

100211100001211 is a deficient number, since it is larger than the sum of its proper divisors (1207362650701).

100211100001211 is an equidigital number, since it uses as much as digits as its factorization.

100211100001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207362650700.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100211100001211 its reverse (112100001112001), we get a palindrome (212311101113212).

The spelling of 100211100001211 in words is "one hundred trillion, two hundred eleven billion, one hundred million, one thousand, two hundred eleven".