100111122222211 has 4 divisors (see below), whose sum is σ = 106000011764712. Its totient is φ = 94222232679712.

The previous prime is 100111122222203. The next prime is 100111122222289. The reversal of 100111122222211 is 112222221111001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100111122222211 - 2³ = 100111122222203 is a prime.

It is a super-2 number, since 2×100111122222211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111122226211) 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, 2944444771225 + ... + 2944444771258.

It is an arithmetic number, because the mean of its divisors is an integer number (26500002941178).

Almost surely, 2^{100111122222211} is an apocalyptic number.

100111122222211 is a deficient number, since it is larger than the sum of its proper divisors (5888889542501).

100111122222211 is an equidigital number, since it uses as much as digits as its factorization.

100111122222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888889542500.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100111122222211 its reverse (112222221111001), we get a palindrome (212333343333212).

The spelling of 100111122222211 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".