12122222120210 has 24 divisors (see below), whose sum is σ = 21899058142500. Its totient is φ = 4831383528384.

The previous prime is 12122222120209. The next prime is 12122222120221. The reversal of 12122222120210 is 1202122222121.

It can be written as a sum of positive squares in 6 ways, for example, as 4302251710969 + 7819970409241 = 2074187^2 + 2796421^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7132085 + ... + 8666664.

Almost surely, 2^{12122222120210} is an apocalyptic number.

12122222120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122222120210 is a deficient number, since it is larger than the sum of its proper divisors (9776836022290).

12122222120210 is an equidigital number, since it uses as much as digits as its factorization.

12122222120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15799310 (or 15799033 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12122222120210 its reverse (1202122222121), we get a palindrome (13324344342331).

The spelling of 12122222120210 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty thousand, two hundred ten".