4122021345 has 32 divisors (see below), whose sum is σ = 7165452672. Its totient is φ = 2011333632.

The previous prime is 4122021317. The next prime is 4122021359. The reversal of 4122021345 is 5431202214.

4122021345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4122021345 - 2⁷ = 4122021217 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 71499 + ... + 115568.

It is an arithmetic number, because the mean of its divisors is an integer number (223920396).

Almost surely, 2^4122021345 is an apocalyptic number.

It is an amenable number.

4122021345 is a deficient number, since it is larger than the sum of its proper divisors (3043431327).

4122021345 is a wasteful number, since it uses less digits than its factorization.

4122021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187201.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4122021345 is about 64202.9699079412. The cubic root of 4122021345 is about 1603.3810462598.

Adding to 4122021345 its reverse (5431202214), we get a palindrome (9553223559).

The spelling of 4122021345 in words is "four billion, one hundred twenty-two million, twenty-one thousand, three hundred forty-five".