2121033 has 4 divisors (see below), whose sum is σ = 2828048. Its totient is φ = 1414020.

The previous prime is 2121029. The next prime is 2121043. The reversal of 2121033 is 3301212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2121033 - 2² = 2121029 is a prime.

It is a D-number.

It is a Duffinian number.

2121033 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2121023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353503 + ... + 353508.

It is an arithmetic number, because the mean of its divisors is an integer number (707012).

2^2121033 is an apocalyptic number.

It is an amenable number.

2121033 is a deficient number, since it is larger than the sum of its proper divisors (707015).

2121033 is an equidigital number, since it uses as much as digits as its factorization.

2121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707014.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2121033 is about 1456.3766683108. The cubic root of 2121033 is about 128.4840275483.

Adding to 2121033 its reverse (3301212), we get a palindrome (5422245).

The spelling of 2121033 in words is "two million, one hundred twenty-one thousand, thirty-three".