2021228 has 24 divisors (see below), whose sum is σ = 3919104. Its totient is φ = 904400.

The previous prime is 2021219. The next prime is 2021237. The reversal of 2021228 is 8221202.

It is an interprime number because it is at equal distance from previous prime (2021219) and next prime (2021237).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801 + ... + 3447.

It is an arithmetic number, because the mean of its divisors is an integer number (163296).

2^2021228 is an apocalyptic number.

It is an amenable number.

2021228 is a deficient number, since it is larger than the sum of its proper divisors (1897876).

2021228 is a wasteful number, since it uses less digits than its factorization.

2021228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2021228 is about 1421.6989836108. The cubic root of 2021228 is about 126.4362971922.

The spelling of 2021228 in words is "two million, twenty-one thousand, two hundred twenty-eight".