100121011112 has 32 divisors (see below), whose sum is σ = 189110208000. Its totient is φ = 49692913344.

The previous prime is 100121011103. The next prime is 100121011117. The reversal of 100121011112 is 211110121001.

It is a junction number, because it is equal to n+sod(n) for n = 100121011093 and 100121011102.

It is not an unprimeable number, because it can be changed into a prime (100121011117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542213 + ... + 703019.

It is an arithmetic number, because the mean of its divisors is an integer number (5909694000).

Almost surely, 2^100121011112 is an apocalyptic number.

It is an amenable number.

100121011112 is a deficient number, since it is larger than the sum of its proper divisors (88989196888).

100121011112 is a wasteful number, since it uses less digits than its factorization.

100121011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161385 (or 161381 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100121011112 its reverse (211110121001), we get a palindrome (311231132113).

The spelling of 100121011112 in words is "one hundred billion, one hundred twenty-one million, eleven thousand, one hundred twelve".