12221210204 has 48 divisors (see below), whose sum is σ = 24880800000. Its totient is φ = 5143896576.

The previous prime is 12221210201. The next prime is 12221210227. The reversal of 12221210204 is 40201212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221210201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2060387 + ... + 2066309.

It is an arithmetic number, because the mean of its divisors is an integer number (518350000).

Almost surely, 2^12221210204 is an apocalyptic number.

12221210204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12221210204 is an abundant number, since it is smaller than the sum of its proper divisors (12659589796).

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

12221210204 is a wasteful number, since it uses less digits than its factorization.

12221210204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7240 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221210204 its reverse (40201212221), we get a palindrome (52422422425).

The spelling of 12221210204 in words is "twelve billion, two hundred twenty-one million, two hundred ten thousand, two hundred four".