4200221042 has 16 divisors (see below), whose sum is σ = 6732146520. Its totient is φ = 1958439168.

The previous prime is 4200221041. The next prime is 4200221099. The reversal of 4200221042 is 2401220024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4129476121 + 70744921 = 64261^2 + 8411^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 4200221042.

It is not an unprimeable number, because it can be changed into a prime (4200221041) 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 7 ways as a sum of consecutive naturals, for example, 562973 + ... + 570384.

Almost surely, 2^4200221042 is an apocalyptic number.

4200221042 is a deficient number, since it is larger than the sum of its proper divisors (2531925478).

4200221042 is a wasteful number, since it uses less digits than its factorization.

4200221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133485.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4200221042 is about 64809.1123376952. The cubic root of 4200221042 is about 1613.4569499324.

Adding to 4200221042 its reverse (2401220024), we get a palindrome (6601441066).

The spelling of 4200221042 in words is "four billion, two hundred million, two hundred twenty-one thousand, forty-two".