12100012112 has 40 divisors (see below), whose sum is σ = 23576990976.
Its totient is φ = 6015695616.
The previous prime is 12100012103. The next prime is 12100012129. The reversal of 12100012112 is 21121000121.
Adding to 12100012112 its reverse (21121000121), we get a palindrome (33221012233).
It is a super-2 number, since 2×121000121122 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12100012093 and 12100012102.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233788 + ... + 4236644.
Almost surely, 212100012112 is an apocalyptic number.
It is an amenable number.
12100012112 is a deficient number, since it is larger than the sum of its proper divisors (11476978864).
12100012112 is a wasteful number, since it uses less digits than its factorization.
12100012112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4275 (or 4269 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 11.
The spelling of 12100012112 in words is "twelve billion, one hundred million, twelve thousand, one hundred twelve".