12021011022212 has 24 divisors (see below), whose sum is σ = 21071669914680. Its totient is φ = 6000534650880.

The previous prime is 12021011022161. The next prime is 12021011022221. The reversal of 12021011022212 is 21222011012021.

It can be written as a sum of positive squares in 4 ways, for example, as 1105744783936 + 10915266238276 = 1051544^2 + 3303826^2 .

It is a super-2 number, since 2×12021011022212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77637512 + ... + 77792192.

It is an arithmetic number, because the mean of its divisors is an integer number (877986246445).

Almost surely, 2^{12021011022212} is an apocalyptic number.

It is an amenable number.

12021011022212 is a deficient number, since it is larger than the sum of its proper divisors (9050658892468).

12021011022212 is a wasteful number, since it uses less digits than its factorization.

12021011022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186791 (or 186789 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021011022212 its reverse (21222011012021), we get a palindrome (33243022034233).

The spelling of 12021011022212 in words is "twelve trillion, twenty-one billion, eleven million, twenty-two thousand, two hundred twelve".