4221122 has 8 divisors (see below), whose sum is σ = 6350400. Its totient is φ = 2104324.

The previous prime is 4221109. The next prime is 4221169. The reversal of 4221122 is 2211224.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4221097 and 4221106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^4221122 is an apocalyptic number.

4221122 is a deficient number, since it is larger than the sum of its proper divisors (2129278).

4221122 is a wasteful number, since it uses less digits than its factorization.

4221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240.

The product of its digits is 64, while the sum is 14.

The square root of 4221122 is about 2054.5369307949. The cubic root of 4221122 is about 161.6128794509.

Adding to 4221122 its reverse (2211224), we get a palindrome (6432346).

It can be divided in two parts, 4 and 221122, that multiplied together give a palindrome (884488).

The spelling of 4221122 in words is "four million, two hundred twenty-one thousand, one hundred twenty-two".