2028221050 has 24 divisors (see below), whose sum is σ = 3824175996. Its totient is φ = 800173440.

The previous prime is 2028221047. The next prime is 2028221071. The reversal of 2028221050 is 501228202.

It can be written as a sum of positive squares in 6 ways, for example, as 1190871081 + 837349969 = 34509^2 + 28937^2 .

It is a super-2 number, since 2×2028221050² = 8227361255326205000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274189 + ... + 281488.

Almost surely, 2^2028221050 is an apocalyptic number.

2028221050 is a deficient number, since it is larger than the sum of its proper divisors (1795954946).

2028221050 is a wasteful number, since it uses less digits than its factorization.

2028221050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555762 (or 555757 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2028221050 is about 45035.7752237041. The cubic root of 2028221050 is about 1265.8194422996.

Adding to 2028221050 its reverse (501228202), we get a palindrome (2529449252).

The spelling of 2028221050 in words is "two billion, twenty-eight million, two hundred twenty-one thousand, fifty".