100211220111 has 4 divisors (see below), whose sum is σ = 133614960152. Its totient is φ = 66807480072.

The previous prime is 100211220097. The next prime is 100211220119. The reversal of 100211220111 is 111022112001.

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

It is not a de Polignac number, because 100211220111 - 2⁹ = 100211219599 is a prime.

It is a super-2 number, since 2×100211220111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211220119) 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, 16701870016 + ... + 16701870021.

It is an arithmetic number, because the mean of its divisors is an integer number (33403740038).

Almost surely, 2^100211220111 is an apocalyptic number.

100211220111 is a deficient number, since it is larger than the sum of its proper divisors (33403740041).

100211220111 is an equidigital number, since it uses as much as digits as its factorization.

100211220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33403740040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100211220111 its reverse (111022112001), we get a palindrome (211233332112).

The spelling of 100211220111 in words is "one hundred billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".