10020222220021 has 4 divisors (see below), whose sum is σ = 10791008544652. Its totient is φ = 9249435895392.

The previous prime is 10020222219991. The next prime is 10020222220039. The reversal of 10020222220021 is 12002222202001.

10020222220021 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 830442173796 + 9189780046225 = 911286^2 + 3031465^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020222220021 - 2⁷ = 10020222219893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020222219977 and 10020222220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020222220081) 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, 385393162296 + ... + 385393162321.

It is an arithmetic number, because the mean of its divisors is an integer number (2697752136163).

Almost surely, 2^{10020222220021} is an apocalyptic number.

It is an amenable number.

10020222220021 is a deficient number, since it is larger than the sum of its proper divisors (770786324631).

10020222220021 is an equidigital number, since it uses as much as digits as its factorization.

10020222220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770786324630.

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

Adding to 10020222220021 its reverse (12002222202001), we get a palindrome (22022444422022).

The spelling of 10020222220021 in words is "ten trillion, twenty billion, two hundred twenty-two million, two hundred twenty thousand, twenty-one".