12122120011210 has 48 divisors (see below), whose sum is σ = 24221227977576. Its totient is φ = 4364399600000.

The previous prime is 12122120011189. The next prime is 12122120011219. The reversal of 12122120011210 is 1211002122121.

It can be written as a sum of positive squares in 4 ways, for example, as 12081123075681 + 40996935529 = 3475791^2 + 202477^2 .

It is not an unprimeable number, because it can be changed into a prime (12122120011219) 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, 49473241 + ... + 49717660.

Almost surely, 2^{12122120011210} is an apocalyptic number.

12122120011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122120011210 is a deficient number, since it is larger than the sum of its proper divisors (12099107966366).

12122120011210 is a wasteful number, since it uses less digits than its factorization.

12122120011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99191031 (or 99191020 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12122120011210 its reverse (1211002122121), we get a palindrome (13333122133331).

The spelling of 12122120011210 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty million, eleven thousand, two hundred ten".