12122222002120 has 16 divisors (see below), whose sum is σ = 27274999504860. Its totient is φ = 4848888800832.

The previous prime is 12122222002073. The next prime is 12122222002129. The reversal of 12122222002120 is 2120022222121.

It can be written as a sum of positive squares in 2 ways, for example, as 12071497052836 + 50724949284 = 3474406^2 + 225222^2 .

It is not an unprimeable number, because it can be changed into a prime (12122222002129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151527774987 + ... + 151527775066.

Almost surely, 2^{12122222002120} is an apocalyptic number.

12122222002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122222002120 is an abundant number, since it is smaller than the sum of its proper divisors (15152777502740).

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

12122222002120 is a wasteful number, since it uses less digits than its factorization.

12122222002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303055550064 (or 303055550060 counting only the distinct ones).

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

Adding to 12122222002120 its reverse (2120022222121), we get a palindrome (14242244224241).

The spelling of 12122222002120 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, two thousand, one hundred twenty".