10220101202221 has 4 divisors (see below), whose sum is σ = 10220108168572. Its totient is φ = 10220094235872.

The previous prime is 10220101202219. The next prime is 10220101202239. The reversal of 10220101202221 is 12220210102201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8635810755625 + 1584290446596 = 2938675^2 + 1258686^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220101202221 - 2¹ = 10220101202219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220101202195 and 10220101202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220101205221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332760 + ... + 4533313.

It is an arithmetic number, because the mean of its divisors is an integer number (2555027042143).

Almost surely, 2^{10220101202221} is an apocalyptic number.

It is an amenable number.

10220101202221 is a deficient number, since it is larger than the sum of its proper divisors (6966351).

10220101202221 is an equidigital number, since it uses as much as digits as its factorization.

10220101202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966350.

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

Adding to 10220101202221 its reverse (12220210102201), we get a palindrome (22440311304422).

The spelling of 10220101202221 in words is "ten trillion, two hundred twenty billion, one hundred one million, two hundred two thousand, two hundred twenty-one".