12020221012122 has 48 divisors (see below), whose sum is σ = 26095339686312. Its totient is φ = 3998813944320.

The previous prime is 12020221012103. The next prime is 12020221012123. The reversal of 12020221012122 is 22121012202021.

It is a happy number.

12020221012122 is a `hidden beast` number, since 120 + 202 + 210 + 12 + 122 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6656601241521 + 5363619770601 = 2580039^2 + 2315949^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12020221012095 and 12020221012104.

It is not an unprimeable number, because it can be changed into a prime (12020221012123) 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, 240586368 + ... + 240636324.

Almost surely, 2^{12020221012122} is an apocalyptic number.

12020221012122 is an abundant number, since it is smaller than the sum of its proper divisors (14075118674190).

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

12020221012122 is a wasteful number, since it uses less digits than its factorization.

12020221012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76143 (or 76140 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12020221012122 its reverse (22121012202021), we get a palindrome (34141233214143).

It can be divided in two parts, 1202022 and 1012122, that added together give a square (2214144 = 1488²).

The spelling of 12020221012122 in words is "twelve trillion, twenty billion, two hundred twenty-one million, twelve thousand, one hundred twenty-two".