100001222101111 has 16 divisors (see below), whose sum is σ = 100548015275520. Its totient is φ = 99455762626560.

The previous prime is 100001222101103. The next prime is 100001222101127. The reversal of 100001222101111 is 111101222100001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100001222101111 - 2³ = 100001222101103 is a prime.

It is a super-2 number, since 2×100001222101111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100001222101091 and 100001222101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001222101411) 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, 465796930 + ... + 466011568.

It is an arithmetic number, because the mean of its divisors is an integer number (6284250954720).

Almost surely, 2^{100001222101111} is an apocalyptic number.

100001222101111 is a deficient number, since it is larger than the sum of its proper divisors (546793174409).

100001222101111 is a wasteful number, since it uses less digits than its factorization.

100001222101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217734.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100001222101111 its reverse (111101222100001), we get a palindrome (211102444201112).

The spelling of 100001222101111 in words is "one hundred trillion, one billion, two hundred twenty-two million, one hundred one thousand, one hundred eleven".