420422222 has 16 divisors (see below), whose sum is σ = 711687600. Its totient is φ = 184511040.

The previous prime is 420422213. The next prime is 420422237. The reversal of 420422222 is 222224024.

420422222 is a modest number, since divided by 22222 gives 4204 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 420422194 and 420422203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328847 + ... + 330122.

It is an arithmetic number, because the mean of its divisors is an integer number (44480475).

Almost surely, 2^420422222 is an apocalyptic number.

420422222 is a deficient number, since it is larger than the sum of its proper divisors (291265378).

420422222 is a wasteful number, since it uses less digits than its factorization.

420422222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659011.

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

The square root of 420422222 is about 20504.2001063197. The cubic root of 420422222 is about 749.1381044126.

Adding to 420422222 its reverse (222224024), we get a palindrome (642646246).

The spelling of 420422222 in words is "four hundred twenty million, four hundred twenty-two thousand, two hundred twenty-two".