12122100222220 has 12 divisors (see below), whose sum is σ = 25456410466704. Its totient is φ = 4848840088880.

The previous prime is 12122100222137. The next prime is 12122100222229. The reversal of 12122100222220 is 2222200122121.

It is not an unprimeable number, because it can be changed into a prime (12122100222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303052505536 + ... + 303052505575.

It is an arithmetic number, because the mean of its divisors is an integer number (2121367538892).

Almost surely, 2^{12122100222220} is an apocalyptic number.

12122100222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122100222220 is an abundant number, since it is smaller than the sum of its proper divisors (13334310244484).

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

12122100222220 is a wasteful number, since it uses less digits than its factorization.

12122100222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606105011120 (or 606105011118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12122100222220 its reverse (2222200122121), we get a palindrome (14344300344341).

The spelling of 12122100222220 in words is "twelve trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, two hundred twenty".