10220020002221 has 4 divisors (see below), whose sum is σ = 10220044723932. Its totient is φ = 10219995280512.

The previous prime is 10220020002173. The next prime is 10220020002251. The reversal of 10220020002221 is 12220002002201.

10220020002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3678957999721 + 6541062002500 = 1918061^2 + 2557550^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220020002221 - 2¹⁴ = 10220019985837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220020002196 and 10220020002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220020002251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11730020 + ... + 12571133.

It is an arithmetic number, because the mean of its divisors is an integer number (2555011180983).

Almost surely, 2^{10220020002221} is an apocalyptic number.

It is an amenable number.

10220020002221 is a deficient number, since it is larger than the sum of its proper divisors (24721711).

10220020002221 is an equidigital number, since it uses as much as digits as its factorization.

10220020002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24721710.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10220020002221 its reverse (12220002002201), we get a palindrome (22440022004422).

The spelling of 10220020002221 in words is "ten trillion, two hundred twenty billion, twenty million, two thousand, two hundred twenty-one".