202010220021 has 8 divisors (see below), whose sum is σ = 270757154304. Its totient is φ = 133968382880.

The previous prime is 202010220019. The next prime is 202010220031. The reversal of 202010220021 is 120022010202.

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 202010220021 - 2¹ = 202010220019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202010219979 and 202010220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202010220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176273616 + ... + 176274761.

It is an arithmetic number, because the mean of its divisors is an integer number (33844644288).

Almost surely, 2^202010220021 is an apocalyptic number.

It is an amenable number.

202010220021 is a deficient number, since it is larger than the sum of its proper divisors (68746934283).

202010220021 is a wasteful number, since it uses less digits than its factorization.

202010220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352548571.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202010220021 its reverse (120022010202), we get a palindrome (322032230223).

The spelling of 202010220021 in words is "two hundred two billion, ten million, two hundred twenty thousand, twenty-one".