202022000021 has 8 divisors (see below), whose sum is σ = 206954336160. Its totient is φ = 197100307152.

The previous prime is 202022000009. The next prime is 202022000039. The reversal of 202022000021 is 120000220202.

202022000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202022000021 - 2⁶ = 202021999957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202021999966 and 202022000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202042000021) 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 7 ways as a sum of consecutive naturals, for example, 2622386 + ... + 2698323.

It is an arithmetic number, because the mean of its divisors is an integer number (25869292020).

Almost surely, 2^202022000021 is an apocalyptic number.

It is an amenable number.

202022000021 is a deficient number, since it is larger than the sum of its proper divisors (4932336139).

202022000021 is an equidigital number, since it uses as much as digits as its factorization.

202022000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321635.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 202022000021 its reverse (120000220202), we get a palindrome (322022220223).

The spelling of 202022000021 in words is "two hundred two billion, twenty-two million, twenty-one", and thus it is an aban number.