12202201212 has 12 divisors (see below), whose sum is σ = 28471802856. Its totient is φ = 4067400400.

The previous prime is 12202201199. The next prime is 12202201213. The reversal of 12202201212 is 21210220221.

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 = 12202201191 and 12202201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508425039 + ... + 508425062.

It is an arithmetic number, because the mean of its divisors is an integer number (2372650238).

Almost surely, 2^12202201212 is an apocalyptic number.

12202201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12202201212 is an abundant number, since it is smaller than the sum of its proper divisors (16269601644).

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

12202201212 is a wasteful number, since it uses less digits than its factorization.

12202201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016850108 (or 1016850106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12202201212 its reverse (21210220221), we get a palindrome (33412421433).

The spelling of 12202201212 in words is "twelve billion, two hundred two million, two hundred one thousand, two hundred twelve".