420222002 has 8 divisors (see below), whose sum is σ = 631014300. Its totient is φ = 209883904.

The previous prime is 420221999. The next prime is 420222007. The reversal of 420222002 is 200222024.

It can be written as a sum of positive squares in 2 ways, for example, as 306565081 + 113656921 = 17509^2 + 10661^2 .

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 (420222007) 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, 111227 + ... + 114942.

Almost surely, 2^420222002 is an apocalyptic number.

420222002 is a deficient number, since it is larger than the sum of its proper divisors (210792298).

420222002 is a wasteful number, since it uses less digits than its factorization.

420222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227100.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 420222002 is about 20499.3171105771. The cubic root of 420222002 is about 749.0191634684.

Adding to 420222002 its reverse (200222024), we get a palindrome (620444026).

The spelling of 420222002 in words is "four hundred twenty million, two hundred twenty-two thousand, two".