10220220020021 has 4 divisors (see below), whose sum is σ = 11149330930944. Its totient is φ = 9291109109100.

The previous prime is 10220220019993. The next prime is 10220220020027. The reversal of 10220220020021 is 12002002202201.

10220220020021 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10220220020021 - 2¹⁰ = 10220220018997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220220019978 and 10220220020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220220020027) 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, 464555455445 + ... + 464555455466.

It is an arithmetic number, because the mean of its divisors is an integer number (2787332732736).

Almost surely, 2^{10220220020021} is an apocalyptic number.

10220220020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10220220020021 is a deficient number, since it is larger than the sum of its proper divisors (929110910923).

10220220020021 is an equidigital number, since it uses as much as digits as its factorization.

10220220020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929110910922.

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

Adding to 10220220020021 its reverse (12002002202201), we get a palindrome (22222222222222).

The spelling of 10220220020021 in words is "ten trillion, two hundred twenty billion, two hundred twenty million, twenty thousand, twenty-one".