12122102211220 has 12 divisors (see below), whose sum is σ = 25456414643604. Its totient is φ = 4848840884480.

The previous prime is 12122102211187. The next prime is 12122102211251. The reversal of 12122102211220 is 2211220122121.

It can be written as a sum of positive squares in 2 ways, for example, as 3566968604164 + 8555133607056 = 1888642^2 + 2924916^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303052555261 + ... + 303052555300.

It is an arithmetic number, because the mean of its divisors is an integer number (2121367886967).

Almost surely, 2^{12122102211220} is an apocalyptic number.

12122102211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122102211220 is an abundant number, since it is smaller than the sum of its proper divisors (13334312432384).

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

12122102211220 is a wasteful number, since it uses less digits than its factorization.

12122102211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606105110570 (or 606105110568 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122102211220 its reverse (2211220122121), we get a palindrome (14333322333341).

The spelling of 12122102211220 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, two hundred eleven thousand, two hundred twenty".