420220102 has 16 divisors (see below), whose sum is σ = 637791840. Its totient is φ = 207629568.

The previous prime is 420220079. The next prime is 420220139. The reversal of 420220102 is 201022024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177108 + ... + 179464.

It is an arithmetic number, because the mean of its divisors is an integer number (39861990).

Almost surely, 2^420220102 is an apocalyptic number.

420220102 is a deficient number, since it is larger than the sum of its proper divisors (217571738).

420220102 is a wasteful number, since it uses less digits than its factorization.

420220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 420220102 is about 20499.2707675176. The cubic root of 420220102 is about 749.0180345901.

Adding to 420220102 its reverse (201022024), we get a palindrome (621242126).

The spelling of 420220102 in words is "four hundred twenty million, two hundred twenty thousand, one hundred two".