100122121110111 has 4 divisors (see below), whose sum is σ = 133496161480152. Its totient is φ = 66748080740072.

The previous prime is 100122121110071. The next prime is 100122121110163. The reversal of 100122121110111 is 111011121221001.

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 100122121110111 - 2⁹ = 100122121109599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122121110811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16687020185016 + ... + 16687020185021.

It is an arithmetic number, because the mean of its divisors is an integer number (33374040370038).

Almost surely, 2^{100122121110111} is an apocalyptic number.

100122121110111 is a deficient number, since it is larger than the sum of its proper divisors (33374040370041).

100122121110111 is an equidigital number, since it uses as much as digits as its factorization.

100122121110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33374040370040.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 100122121110111 its reverse (111011121221001), we get a palindrome (211133242331112).

The spelling of 100122121110111 in words is "one hundred trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred ten thousand, one hundred eleven".