12000122101220 has 72 divisors (see below), whose sum is σ = 27737248657272. Its totient is φ = 4357726940160.

The previous prime is 12000122101183. The next prime is 12000122101223. The reversal of 12000122101220 is 2210122100021.

It can be written as a sum of positive squares in 4 ways, for example, as 4858603442176 + 7141518659044 = 2204224^2 + 2672362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12000122101195 and 12000122101204.

It is not an unprimeable number, because it can be changed into a prime (12000122101223) 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, 1608629 + ... + 5156348.

Almost surely, 2^{12000122101220} is an apocalyptic number.

12000122101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000122101220 is an abundant number, since it is smaller than the sum of its proper divisors (15737126556052).

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

12000122101220 is a wasteful number, since it uses less digits than its factorization.

12000122101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765741 (or 6765728 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12000122101220 its reverse (2210122100021), we get a palindrome (14210244201241).

The spelling of 12000122101220 in words is "twelve trillion, one hundred twenty-two million, one hundred one thousand, two hundred twenty".