12122222210 has 48 divisors (see below), whose sum is σ = 25688347776. Its totient is φ = 4106102112.

The previous prime is 12122222209. The next prime is 12122222213. The reversal of 12122222210 is 1222222121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12122222213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108362 + ... + 189701.

It is an arithmetic number, because the mean of its divisors is an integer number (535173912).

Almost surely, 2^12122222210 is an apocalyptic number.

12122222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122222210 is an abundant number, since it is smaller than the sum of its proper divisors (13566125566).

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

12122222210 is a wasteful number, since it uses less digits than its factorization.

12122222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298167 (or 298160 counting only the distinct ones).

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

Adding to 12122222210 its reverse (1222222121), we get a palindrome (13344444331).

The spelling of 12122222210 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".