2011228 has 6 divisors (see below), whose sum is σ = 3519656. Its totient is φ = 1005612.

The previous prime is 2011211. The next prime is 2011241. The reversal of 2011228 is 8221102.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251400 + ... + 251407.

2^2011228 is an apocalyptic number.

It is an amenable number.

2011228 is a deficient number, since it is larger than the sum of its proper divisors (1508428).

2011228 is a wasteful number, since it uses less digits than its factorization.

2011228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502811 (or 502809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2011228 is about 1418.1777039567. The cubic root of 2011228 is about 126.2274383760.

The spelling of 2011228 in words is "two million, eleven thousand, two hundred twenty-eight".