2042233121 has 4 divisors (see below), whose sum is σ = 2042827332. Its totient is φ = 2041638912.

The previous prime is 2042233111. The next prime is 2042233129. The reversal of 2042233121 is 1213322402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164224225 + 1878008896 = 12815^2 + 43336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042233121 - 2¹⁰ = 2042232097 is a prime.

It is a super-2 number, since 2×2042233121² = 8341432241018801282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2042233093 and 2042233102.

It is not an unprimeable number, because it can be changed into a prime (2042233129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291920 + ... + 298833.

It is an arithmetic number, because the mean of its divisors is an integer number (510706833).

Almost surely, 2^2042233121 is an apocalyptic number.

It is an amenable number.

2042233121 is a deficient number, since it is larger than the sum of its proper divisors (594211).

2042233121 is an equidigital number, since it uses as much as digits as its factorization.

2042233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594210.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2042233121 is about 45191.0734658959. The cubic root of 2042233121 is about 1268.7277483831.

Adding to 2042233121 its reverse (1213322402), we get a palindrome (3255555523).

The spelling of 2042233121 in words is "two billion, forty-two million, two hundred thirty-three thousand, one hundred twenty-one".