422222222 has 8 divisors (see below), whose sum is σ = 633949536. Its totient is φ = 210905712.

The previous prime is 422222219. The next prime is 422222239. The reversal of 422222222 is 222222224.

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

422222222 is a modest number, since divided by 22222 gives 4222 as remainder.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 422222194 and 422222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100118 + ... + 104249.

It is an arithmetic number, because the mean of its divisors is an integer number (79243692).

Almost surely, 2^422222222 is an apocalyptic number.

422222222 is a deficient number, since it is larger than the sum of its proper divisors (211727314).

422222222 is a wasteful number, since it uses less digits than its factorization.

422222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205402.

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

The square root of 422222222 is about 20548.0466711559. The cubic root of 422222222 is about 750.2057047608.

Adding to 422222222 its reverse (222222224), we get a palindrome (644444446).

It can be divided in two parts, 42222222 and 2, that added together give a palindrome (42222224).

The spelling of 422222222 in words is "four hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".