2050221 has 4 divisors (see below), whose sum is σ = 2733632. Its totient is φ = 1366812.

The previous prime is 2050219. The next prime is 2050229. The reversal of 2050221 is 1220502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2050221 - 2¹ = 2050219 is a prime.

It is a super-2 number, since 2×2050221² = 8406812297682, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

2050221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2050197 and 2050206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050229) 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, 341701 + ... + 341706.

It is an arithmetic number, because the mean of its divisors is an integer number (683408).

2^2050221 is an apocalyptic number.

It is an amenable number.

2050221 is a deficient number, since it is larger than the sum of its proper divisors (683411).

2050221 is an equidigital number, since it uses as much as digits as its factorization.

2050221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683410.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2050221 is about 1431.8592807954. The cubic root of 2050221 is about 127.0379740536.

Adding to 2050221 its reverse (1220502), we get a palindrome (3270723).

The spelling of 2050221 in words is "two million, fifty thousand, two hundred twenty-one".