4220022545 has 8 divisors (see below), whose sum is σ = 5075110824. Its totient is φ = 3368628864.

The previous prime is 4220022491. The next prime is 4220022559. The reversal of 4220022545 is 5452200224.

It can be written as a sum of positive squares in 4 ways, for example, as 704955601 + 3515066944 = 26551^2 + 59288^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4220022545 - 2²² = 4215828241 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 921134 + ... + 925703.

It is an arithmetic number, because the mean of its divisors is an integer number (634388853).

Almost surely, 2^4220022545 is an apocalyptic number.

It is an amenable number.

4220022545 is a deficient number, since it is larger than the sum of its proper divisors (855088279).

4220022545 is a wasteful number, since it uses less digits than its factorization.

4220022545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847299.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 4220022545 is about 64961.7006012004. The cubic root of 4220022545 is about 1615.9884672708.

Adding to 4220022545 its reverse (5452200224), we get a palindrome (9672222769).

The spelling of 4220022545 in words is "four billion, two hundred twenty million, twenty-two thousand, five hundred forty-five".