2021442130 has 8 divisors (see below), whose sum is σ = 3638595852. Its totient is φ = 808576848.

The previous prime is 2021442121. The next prime is 2021442131. The reversal of 2021442130 is 312441202.

It can be written as a sum of positive squares in 2 ways, for example, as 2005337961 + 16104169 = 44781^2 + 4013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021442098 and 2021442107.

It is not an unprimeable number, because it can be changed into a prime (2021442131) 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, 101072097 + ... + 101072116.

Almost surely, 2^2021442130 is an apocalyptic number.

2021442130 is a deficient number, since it is larger than the sum of its proper divisors (1617153722).

2021442130 is a wasteful number, since it uses less digits than its factorization.

2021442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202144220.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2021442130 is about 44960.4507317264. The cubic root of 2021442130 is about 1264.4076194465.

Adding to 2021442130 its reverse (312441202), we get a palindrome (2333883332).

The spelling of 2021442130 in words is "two billion, twenty-one million, four hundred forty-two thousand, one hundred thirty".