4022222 has 4 divisors (see below), whose sum is σ = 6033336. Its totient is φ = 2011110.

The previous prime is 4022203. The next prime is 4022257. The reversal of 4022222 is 2222204.

It is a semiprime because it is the product of two primes.

4022222 is a modest number, since divided by 2222 gives 402 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 4022197 and 4022206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005554 + ... + 1005557.

It is an arithmetic number, because the mean of its divisors is an integer number (1508334).

Almost surely, 2^4022222 is an apocalyptic number.

4022222 is a deficient number, since it is larger than the sum of its proper divisors (2011114).

4022222 is a wasteful number, since it uses less digits than its factorization.

4022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011113.

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

The square root of 4022222 is about 2005.5478054636. The cubic root of 4022222 is about 159.0335227236.

Adding to 4022222 its reverse (2222204), we get a palindrome (6244426).

The spelling of 4022222 in words is "four million, twenty-two thousand, two hundred twenty-two".