12212031112 has 16 divisors (see below), whose sum is σ = 22901757840.
Its totient is φ = 6104895696.
The previous prime is 12212031077. The next prime is 12212031113. The reversal of 12212031112 is 21113021221.
It is not an unprimeable number, because it can be changed into a prime (12212031113) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92698 + ... + 181705.
It is an arithmetic number, because the mean of its divisors is an integer number (1431359865).
Almost surely, 212212031112 is an apocalyptic number.
It is an amenable number.
12212031112 is a deficient number, since it is larger than the sum of its proper divisors (10689726728).
12212031112 is a wasteful number, since it uses less digits than its factorization.
12212031112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 279972 (or 279968 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 16.
Adding to 12212031112 its reverse (21113021221), we get a palindrome (33325052333).
The spelling of 12212031112 in words is "twelve billion, two hundred twelve million, thirty-one thousand, one hundred twelve".