10221021022021 has 2 divisors, whose sum is σ = 10221021022022. Its totient is φ = 10221021022020.

The previous prime is 10221021022007. The next prime is 10221021022031. The reversal of 10221021022021 is 12022012012201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5659212788100 + 4561808233921 = 2378910^2 + 2135839^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221021022021 - 2⁴³ = 1424927999813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221021021986 and 10221021022004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221021022031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110510511010 + 5110510511011.

It is an arithmetic number, because the mean of its divisors is an integer number (5110510511011).

Almost surely, 2^{10221021022021} is an apocalyptic number.

It is an amenable number.

10221021022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221021022021 is an equidigital number, since it uses as much as digits as its factorization.

10221021022021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10221021022021 its reverse (12022012012201), we get a palindrome (22243033034222).

The spelling of 10221021022021 in words is "ten trillion, two hundred twenty-one billion, twenty-one million, twenty-two thousand, twenty-one".