4201220042 has 16 divisors (see below), whose sum is σ = 6353500032. Its totient is φ = 2083404960.

The previous prime is 4201220033. The next prime is 4201220063. The reversal of 4201220042 is 2400221024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4201220042.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637838 + ... + 644390.

It is an arithmetic number, because the mean of its divisors is an integer number (397093752).

Almost surely, 2^4201220042 is an apocalyptic number.

4201220042 is a deficient number, since it is larger than the sum of its proper divisors (2152279990).

4201220042 is a wasteful number, since it uses less digits than its factorization.

4201220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133.

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

The square root of 4201220042 is about 64816.8191289884. The cubic root of 4201220042 is about 1613.5848571468.

Adding to 4201220042 its reverse (2400221024), we get a palindrome (6601441066).

The spelling of 4201220042 in words is "four billion, two hundred one million, two hundred twenty thousand, forty-two".