10212012220221 has 48 divisors (see below), whose sum is σ = 17579959488000. Its totient is φ = 5802835182768.

The previous prime is 10212012220181. The next prime is 10212012220229. The reversal of 10212012220221 is 12202221021201.

It is a happy number.

10212012220221 is a `hidden beast` number, since 1 + 0 + 21 + 201 + 2 + 220 + 221 = 666.

It is not a de Polignac number, because 10212012220221 - 2³³ = 10203422285629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212012220194 and 10212012220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212012220229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16465171 + ... + 17074128.

It is an arithmetic number, because the mean of its divisors is an integer number (366249156000).

Almost surely, 2^{10212012220221} is an apocalyptic number.

It is an amenable number.

10212012220221 is a deficient number, since it is larger than the sum of its proper divisors (7367947267779).

10212012220221 is an equidigital number, since it uses as much as digits as its factorization.

10212012220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33539500 (or 33539488 counting only the distinct ones).

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

Adding to 10212012220221 its reverse (12202221021201), we get a palindrome (22414233241422).

The spelling of 10212012220221 in words is "ten trillion, two hundred twelve billion, twelve million, two hundred twenty thousand, two hundred twenty-one".