100012100011211 has 4 divisors (see below), whose sum is σ = 101278075960800. Its totient is φ = 98746124061624.

The previous prime is 100012100011199. The next prime is 100012100011253. The reversal of 100012100011211 is 112110001210001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100012100011211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012100011192 and 100012100011201.

It is not an unprimeable number, because it can be changed into a prime (100012100011261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632987974676 + ... + 632987974833.

It is an arithmetic number, because the mean of its divisors is an integer number (25319518990200).

Almost surely, 2^{100012100011211} is an apocalyptic number.

100012100011211 is a deficient number, since it is larger than the sum of its proper divisors (1265975949589).

100012100011211 is an equidigital number, since it uses as much as digits as its factorization.

100012100011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265975949588.

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

Adding to 100012100011211 its reverse (112110001210001), we get a palindrome (212122101221212).

The spelling of 100012100011211 in words is "one hundred trillion, twelve billion, one hundred million, eleven thousand, two hundred eleven".