100011212101211 has 16 divisors (see below), whose sum is σ = 103047081026688. Its totient is φ = 97013243980800.

The previous prime is 100011212101183. The next prime is 100011212101217. The reversal of 100011212101211 is 112101212110001.

It is a cyclic number.

It is not a de Polignac number, because 100011212101211 - 2²⁶ = 100011144992347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100011212101217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138474671 + ... + 139195031.

It is an arithmetic number, because the mean of its divisors is an integer number (6440442564168).

Almost surely, 2^{100011212101211} is an apocalyptic number.

100011212101211 is a deficient number, since it is larger than the sum of its proper divisors (3035868925477).

100011212101211 is a wasteful number, since it uses less digits than its factorization.

100011212101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746662.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100011212101211 its reverse (112101212110001), we get a palindrome (212112424211212).

The spelling of 100011212101211 in words is "one hundred trillion, eleven billion, two hundred twelve million, one hundred one thousand, two hundred eleven".