100211120111 has 4 divisors (see below), whose sum is σ = 100232615472. Its totient is φ = 100189624752.

The previous prime is 100211120081. The next prime is 100211120131. The reversal of 100211120111 is 111021112001.

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-100211120111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100211120092 and 100211120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211120131) 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, 10740686 + ... + 10750011.

It is an arithmetic number, because the mean of its divisors is an integer number (25058153868).

Almost surely, 2^100211120111 is an apocalyptic number.

100211120111 is a deficient number, since it is larger than the sum of its proper divisors (21495361).

100211120111 is an equidigital number, since it uses as much as digits as its factorization.

100211120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495360.

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

Adding to 100211120111 its reverse (111021112001), we get a palindrome (211232232112).

The spelling of 100211120111 in words is "one hundred billion, two hundred eleven million, one hundred twenty thousand, one hundred eleven".