2050022221 has 6 divisors (see below), whose sum is σ = 2219846730. Its totient is φ = 1892328048.

The previous prime is 2050022213. The next prime is 2050022237. The reversal of 2050022221 is 1222200502.

It can be written as a sum of positive squares in 3 ways, for example, as 1464100 + 2048558121 = 1210^2 + 45261^2 .

It is not a de Polignac number, because 2050022221 - 2³ = 2050022213 is a prime.

It is a super-2 number, since 2×2050022221² = 8405182213187545682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2050022195 and 2050022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050022251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6064986 + ... + 6065323.

It is an arithmetic number, because the mean of its divisors is an integer number (369974455).

Almost surely, 2^2050022221 is an apocalyptic number.

It is an amenable number.

2050022221 is a deficient number, since it is larger than the sum of its proper divisors (169824509).

2050022221 is a wasteful number, since it uses less digits than its factorization.

2050022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130335 (or 12130322 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2050022221 is about 45277.1710799162. The cubic root of 2050022221 is about 1270.3386826899.

Adding to 2050022221 its reverse (1222200502), we get a palindrome (3272222723).

The spelling of 2050022221 in words is "two billion, fifty million, twenty-two thousand, two hundred twenty-one".