420012222 has 24 divisors (see below), whose sum is σ = 977171976. Its totient is φ = 120003408.

The previous prime is 420012179. The next prime is 420012239. The reversal of 420012222 is 222210024.

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 11 ways as a sum of consecutive naturals, for example, 714013 + ... + 714600.

It is an arithmetic number, because the mean of its divisors is an integer number (40715499).

Almost surely, 2^420012222 is an apocalyptic number.

420012222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

420012222 is an abundant number, since it is smaller than the sum of its proper divisors (557159754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420012222 is a wasteful number, since it uses less digits than its factorization.

420012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428632 (or 1428625 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 420012222 is about 20494.1997160172. The cubic root of 420012222 is about 748.8945028576.

Adding to 420012222 its reverse (222210024), we get a palindrome (642222246).

The spelling of 420012222 in words is "four hundred twenty million, twelve thousand, two hundred twenty-two".