2021124 has 24 divisors (see below), whose sum is σ = 5389888. Its totient is φ = 577440.

The previous prime is 2021119. The next prime is 2021137. The reversal of 2021124 is 4211202.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 in 7 ways as a sum of consecutive naturals, for example, 11947 + ... + 12114.

2^2021124 is an apocalyptic number.

It is an amenable number.

2021124 is an abundant number, since it is smaller than the sum of its proper divisors (3368764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021124 is a wasteful number, since it uses less digits than its factorization.

2021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24075 (or 24073 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2021124 is about 1421.6624071839. The cubic root of 2021124 is about 126.4341286094.

Adding to 2021124 its reverse (4211202), we get a palindrome (6232326).

It can be divided in two parts, 2021 and 124, that added together give a triangular number (2145 = T₆₅).

The spelling of 2021124 in words is "two million, twenty-one thousand, one hundred twenty-four".