12213231210 has 48 divisors (see below), whose sum is σ = 32612637096. Its totient is φ = 3168837504.

The previous prime is 12213231193. The next prime is 12213231223. The reversal of 12213231210 is 1213231221.

12213231210 is a `hidden beast` number, since 1 + 221 + 3 + 231 + 210 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10056278961 + 2156952249 = 100281^2 + 46443^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1830489 + ... + 1837148.

Almost surely, 2^12213231210 is an apocalyptic number.

12213231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12213231210 is an abundant number, since it is smaller than the sum of its proper divisors (20399405886).

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

12213231210 is a wasteful number, since it uses less digits than its factorization.

12213231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667687 (or 3667684 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12213231210 its reverse (1213231221), we get a palindrome (13426462431).

The spelling of 12213231210 in words is "twelve billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred ten".