100001021121112 has 8 divisors (see below), whose sum is σ = 187501914602100. Its totient is φ = 50000510560552.

The previous prime is 100001021121097. The next prime is 100001021121119. The reversal of 100001021121112 is 211121120100001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100001021121092 and 100001021121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001021121119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250063820062 + ... + 6250063820077.

Almost surely, 2^{100001021121112} is an apocalyptic number.

It is an amenable number.

100001021121112 is a deficient number, since it is larger than the sum of its proper divisors (87500893480988).

100001021121112 is a wasteful number, since it uses less digits than its factorization.

100001021121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12500127640145 (or 12500127640141 counting only the distinct ones).

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

Adding to 100001021121112 its reverse (211121120100001), we get a palindrome (311122141221113).

The spelling of 100001021121112 in words is "one hundred trillion, one billion, twenty-one million, one hundred twenty-one thousand, one hundred twelve".