202210220021 has 8 divisors (see below), whose sum is σ = 212861980320. Its totient is φ = 191559371472.

The previous prime is 202210219987. The next prime is 202210220027. The reversal of 202210220021 is 120022012202.

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 202210220021 - 2¹⁰ = 202210218997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202210219978 and 202210220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202210220027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253391 + ... + 684563.

It is an arithmetic number, because the mean of its divisors is an integer number (26607747540).

Almost surely, 2^202210220021 is an apocalyptic number.

It is an amenable number.

202210220021 is a deficient number, since it is larger than the sum of its proper divisors (10651760299).

202210220021 is a wasteful number, since it uses less digits than its factorization.

202210220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455875.

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

Adding to 202210220021 its reverse (120022012202), we get a palindrome (322232232223).

The spelling of 202210220021 in words is "two hundred two billion, two hundred ten million, two hundred twenty thousand, twenty-one".