12010102222221 has 20 divisors (see below), whose sum is σ = 18142601370300. Its totient is φ = 7916771497536.

The previous prime is 12010102222169. The next prime is 12010102222241. The reversal of 12010102222221 is 12222220101021.

It is a happy number.

12010102222221 is a `hidden beast` number, since 120 + 1 + 0 + 102 + 222 + 221 = 666.

12010102222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3925605166596 + 8084497055625 = 1981314^2 + 2843325^2 .

It is not a de Polignac number, because 12010102222221 - 2¹⁴ = 12010102205837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010102222194 and 12010102222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010102222241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 832986426 + ... + 833000843.

It is an arithmetic number, because the mean of its divisors is an integer number (907130068515).

Almost surely, 2^{12010102222221} is an apocalyptic number.

It is an amenable number.

12010102222221 is a deficient number, since it is larger than the sum of its proper divisors (6132499148079).

12010102222221 is an equidigital number, since it uses as much as digits as its factorization.

12010102222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665987370 (or 1665987361 counting only the distinct ones).

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

Adding to 12010102222221 its reverse (12222220101021), we get a palindrome (24232322323242).

The spelling of 12010102222221 in words is "twelve trillion, ten billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty-one".