12122212020210 has 96 divisors (see below), whose sum is σ = 32492124795312. Its totient is φ = 3133658511360.

The previous prime is 12122212020203. The next prime is 12122212020271. The reversal of 12122212020210 is 1202021222121.

It is a happy number.

12122212020210 is a `hidden beast` number, since 1 + 212 + 221 + 2 + 0 + 20 + 210 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2821462637841 + 9300749382369 = 1679721^2 + 3049713^2 .

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 47 ways as a sum of consecutive naturals, for example, 9882939 + ... + 11041598.

Almost surely, 2^{12122212020210} is an apocalyptic number.

12122212020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122212020210 is an abundant number, since it is smaller than the sum of its proper divisors (20369912775102).

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

12122212020210 is a wasteful number, since it uses less digits than its factorization.

12122212020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20924748 (or 20924745 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122212020210 its reverse (1202021222121), we get a palindrome (13324233242331).

The spelling of 12122212020210 in words is "twelve trillion, one hundred twenty-two billion, two hundred twelve million, twenty thousand, two hundred ten".