420404220002 has 8 divisors (see below), whose sum is σ = 679114509276. Its totient is φ = 194032716912.

The previous prime is 420404220001. The next prime is 420404220011. The reversal of 420404220002 is 200022404024.

It can be written as a sum of positive squares in 2 ways, for example, as 391248999001 + 29155221001 = 625499^2 + 170749^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420404220001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084696513 + ... + 8084696564.

Almost surely, 2^420404220002 is an apocalyptic number.

420404220002 is a deficient number, since it is larger than the sum of its proper divisors (258710289274).

420404220002 is a wasteful number, since it uses less digits than its factorization.

420404220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16169393092.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 420404220002 its reverse (200022404024), we get a palindrome (620426624026).

The spelling of 420404220002 in words is "four hundred twenty billion, four hundred four million, two hundred twenty thousand, two".