10221202122021 has 12 divisors (see below), whose sum is σ = 16106136677280. Its totient is φ = 6194667952680.

The previous prime is 10221202122013. The next prime is 10221202122073. The reversal of 10221202122021 is 12022120212201.

It is a happy number.

10221202122021 is a `hidden beast` number, since 1 + 0 + 221 + 202 + 1 + 220 + 21 = 666.

It is not a de Polignac number, because 10221202122021 - 2³ = 10221202122013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221202121985 and 10221202122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221202122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51622232841 + ... + 51622233038.

It is an arithmetic number, because the mean of its divisors is an integer number (1342178056440).

Almost surely, 2^{10221202122021} is an apocalyptic number.

10221202122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10221202122021 is a deficient number, since it is larger than the sum of its proper divisors (5884934555259).

10221202122021 is a wasteful number, since it uses less digits than its factorization.

10221202122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103244465896 (or 103244465893 counting only the distinct ones).

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

Adding to 10221202122021 its reverse (12022120212201), we get a palindrome (22243322334222).

The spelling of 10221202122021 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, twenty-one".