12201103212 has 12 divisors (see below), whose sum is σ = 28469240856. Its totient is φ = 4067034400.

The previous prime is 12201103207. The next prime is 12201103217. The reversal of 12201103212 is 21230110221.

It is an interprime number because it is at equal distance from previous prime (12201103207) and next prime (12201103217).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12201103191 and 12201103200.

It is not an unprimeable number, because it can be changed into a prime (12201103217) 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, 508379289 + ... + 508379312.

It is an arithmetic number, because the mean of its divisors is an integer number (2372436738).

Almost surely, 2^12201103212 is an apocalyptic number.

12201103212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201103212 is an abundant number, since it is smaller than the sum of its proper divisors (16268137644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201103212 is a wasteful number, since it uses less digits than its factorization.

12201103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016758608 (or 1016758606 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12201103212 its reverse (21230110221), we get a palindrome (33431213433).

The spelling of 12201103212 in words is "twelve billion, two hundred one million, one hundred three thousand, two hundred twelve".