10220020022221 has 8 divisors (see below), whose sum is σ = 10555492381560. Its totient is φ = 9889830692352.

The previous prime is 10220020022197. The next prime is 10220020022243. The reversal of 10220020022221 is 12222002002201.

It can be written as a sum of positive squares in 4 ways, for example, as 4564845902500 + 5655174119721 = 2136550^2 + 2378061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10220020022221 - 2¹¹ = 10220020020173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220020022195 and 10220020022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220020022021) 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 7 ways as a sum of consecutive naturals, for example, 1320753436 + ... + 1320761173.

It is an arithmetic number, because the mean of its divisors is an integer number (1319436547695).

Almost surely, 2^{10220020022221} is an apocalyptic number.

It is an amenable number.

10220020022221 is a deficient number, since it is larger than the sum of its proper divisors (335472359339).

10220020022221 is an equidigital number, since it uses as much as digits as its factorization.

10220020022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641514735.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10220020022221 its reverse (12222002002201), we get a palindrome (22442022024422).

The spelling of 10220020022221 in words is "ten trillion, two hundred twenty billion, twenty million, twenty-two thousand, two hundred twenty-one".