100111212211 has 8 divisors (see below), whose sum is σ = 105780913920.
Its totient is φ = 94481579592.
The previous prime is 100111212151. The next prime is 100111212337. The reversal of 100111212211 is 112212111001.
Adding to 100111212211 its reverse (112212111001), we get a palindrome (212323323212).
It is a happy number.
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 100111212211 - 217 = 100111081139 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 100111212191 and 100111212200.
It is not an unprimeable number, because it can be changed into a prime (100111212511) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012135 + ... + 10022128.
It is an arithmetic number, because the mean of its divisors is an integer number (13222614240).
Almost surely, 2100111212211 is an apocalyptic number.
100111212211 is a deficient number, since it is larger than the sum of its proper divisors (5669701709).
100111212211 is a wasteful number, since it uses less digits than its factorization.
100111212211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20034545.
The product of its (nonzero) digits is 8, while the sum is 13.
The spelling of 100111212211 in words is "one hundred billion, one hundred eleven million, two hundred twelve thousand, two hundred eleven".