100001220111112 has 16 divisors (see below), whose sum is σ = 187502393783340. Its totient is φ = 50000581768896.

The previous prime is 100001220111047. The next prime is 100001220111151. The reversal of 100001220111112 is 211111022100001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91744712095716 + 8256508015396 = 9578346^2 + 2873414^2 .

It is a super-2 number, since 2×100001220111112² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100001220111092 and 100001220111101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26142198 + ... + 29722330.

Almost surely, 2^{100001220111112} is an apocalyptic number.

It is an amenable number.

100001220111112 is a deficient number, since it is larger than the sum of its proper divisors (87501173672228).

100001220111112 is a wasteful number, since it uses less digits than its factorization.

100001220111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071672 (or 7071668 counting only the distinct ones).

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

Adding to 100001220111112 its reverse (211111022100001), we get a palindrome (311112242211113).

The spelling of 100001220111112 in words is "one hundred trillion, one billion, two hundred twenty million, one hundred eleven thousand, one hundred twelve".