100111222020111 has 64 divisors (see below), whose sum is σ = 141974358958080. Its totient is φ = 62571372635520.

The previous prime is 100111222020067. The next prime is 100111222020113. The reversal of 100111222020111 is 111020222111001.

It is a happy number.

It is not a de Polignac number, because 100111222020111 - 2⁷ = 100111222019983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111222020113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5818043470 + ... + 5818060676.

It is an arithmetic number, because the mean of its divisors is an integer number (2218349358720).

Almost surely, 2^{100111222020111} is an apocalyptic number.

100111222020111 is a deficient number, since it is larger than the sum of its proper divisors (41863136937969).

100111222020111 is a wasteful number, since it uses less digits than its factorization.

100111222020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100111222020111 its reverse (111020222111001), we get a palindrome (211131444131112).

The spelling of 100111222020111 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty-two million, twenty thousand, one hundred eleven".