100101221222111 has 16 divisors (see below), whose sum is σ = 105955234748928. Its totient is φ = 94373136026400.

The previous prime is 100101221222027. The next prime is 100101221222143. The reversal of 100101221222111 is 111222122101001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100101221222111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100101221222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100101221222411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3203861 + ... + 14507486.

It is an arithmetic number, because the mean of its divisors is an integer number (6622202171808).

Almost surely, 2^{100101221222111} is an apocalyptic number.

100101221222111 is a deficient number, since it is larger than the sum of its proper divisors (5854013526817).

100101221222111 is a wasteful number, since it uses less digits than its factorization.

100101221222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17714902.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100101221222111 its reverse (111222122101001), we get a palindrome (211323343323112).

The spelling of 100101221222111 in words is "one hundred trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".