100121102221111 has 16 divisors (see below), whose sum is σ = 100718580729600. Its totient is φ = 99524606860800.

The previous prime is 100121102221109. The next prime is 100121102221121. The reversal of 100121102221111 is 111122201121001.

It is a cyclic number.

It is not a de Polignac number, because 100121102221111 - 2¹ = 100121102221109 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 (100121102221121) 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 15 ways as a sum of consecutive naturals, for example, 1053559380 + ... + 1053654406.

It is an arithmetic number, because the mean of its divisors is an integer number (6294911295600).

Almost surely, 2^{100121102221111} is an apocalyptic number.

100121102221111 is a deficient number, since it is larger than the sum of its proper divisors (597478508489).

100121102221111 is a wasteful number, since it uses less digits than its factorization.

100121102221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100134.

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

Adding to 100121102221111 its reverse (111122201121001), we get a palindrome (211243303342112).

It can be divided in two parts, 10012110 and 2221111, that added together give a palindrome (12233221).

The spelling of 100121102221111 in words is "one hundred trillion, one hundred twenty-one billion, one hundred two million, two hundred twenty-one thousand, one hundred eleven".