100122311111 has 4 divisors (see below), whose sum is σ = 101113621224. Its totient is φ = 99131001000.

The previous prime is 100122311071. The next prime is 100122311161. The reversal of 100122311111 is 111113221001.

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 100122311111 - 2³⁴ = 82942441927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122311161) 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, 495654905 + ... + 495655106.

It is an arithmetic number, because the mean of its divisors is an integer number (25278405306).

Almost surely, 2^100122311111 is an apocalyptic number.

100122311111 is a deficient number, since it is larger than the sum of its proper divisors (991310113).

100122311111 is an equidigital number, since it uses as much as digits as its factorization.

100122311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991310112.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 100122311111 its reverse (111113221001), we get a palindrome (211235532112).

The spelling of 100122311111 in words is "one hundred billion, one hundred twenty-two million, three hundred eleven thousand, one hundred eleven".