10212330001221 has 12 divisors (see below), whose sum is σ = 14751792289260. Its totient is φ = 6807920483520.

The previous prime is 10212330001219. The next prime is 10212330001259. The reversal of 10212330001221 is 12210003321201.

10212330001221 is a `hidden beast` number, since 1 + 0 + 212 + 330 + 0 + 0 + 122 + 1 = 666.

10212330001221 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 5222641796100 + 4989688205121 = 2285310^2 + 2233761^2 .

It is not a de Polignac number, because 10212330001221 - 2¹ = 10212330001219 is a prime.

It is a super-2 number, since 2×10212330001221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10212330001194 and 10212330001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212330001201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24743736 + ... + 25153073.

It is an arithmetic number, because the mean of its divisors is an integer number (1229316024105).

Almost surely, 2^{10212330001221} is an apocalyptic number.

It is an amenable number.

10212330001221 is a deficient number, since it is larger than the sum of its proper divisors (4539462288039).

10212330001221 is a wasteful number, since it uses less digits than its factorization.

10212330001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49919556 (or 49919553 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10212330001221 its reverse (12210003321201), we get a palindrome (22422333322422).

The spelling of 10212330001221 in words is "ten trillion, two hundred twelve billion, three hundred thirty million, one thousand, two hundred twenty-one".