202050221 has 4 divisors (see below), whose sum is σ = 209017500. Its totient is φ = 195082944.

The previous prime is 202050187. The next prime is 202050223. The reversal of 202050221 is 122050202.

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 117961321 + 84088900 = 10861^2 + 9170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202050221 is a prime.

It is a super-2 number, since 2×202050221² = 81648583612297682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202050196 and 202050205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202050223) 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, 3483596 + ... + 3483653.

It is an arithmetic number, because the mean of its divisors is an integer number (52254375).

Almost surely, 2^202050221 is an apocalyptic number.

It is an amenable number.

202050221 is a deficient number, since it is larger than the sum of its proper divisors (6967279).

202050221 is an equidigital number, since it uses as much as digits as its factorization.

202050221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967278.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 202050221 is about 14214.4370623673. The cubic root of 202050221 is about 586.7950522153.

The spelling of 202050221 in words is "two hundred two million, fifty thousand, two hundred twenty-one".