2021453122 has 8 divisors (see below), whose sum is σ = 3265424316. Its totient is φ = 932978352.

The previous prime is 2021453107. The next prime is 2021453123. The reversal of 2021453122 is 2213541202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1802087401 + 219365721 = 42451^2 + 14811^2 .

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 = 2021453093 and 2021453102.

It is not an unprimeable number, because it can be changed into a prime (2021453123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38874073 + ... + 38874124.

Almost surely, 2^2021453122 is an apocalyptic number.

2021453122 is a deficient number, since it is larger than the sum of its proper divisors (1243971194).

2021453122 is a wasteful number, since it uses less digits than its factorization.

2021453122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77748212.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2021453122 is about 44960.5729723277. The cubic root of 2021453122 is about 1264.4099112663.

Adding to 2021453122 its reverse (2213541202), we get a palindrome (4234994324).

The spelling of 2021453122 in words is "two billion, twenty-one million, four hundred fifty-three thousand, one hundred twenty-two".