4221122222 has 4 divisors (see below), whose sum is σ = 6331683336. Its totient is φ = 2110561110.

The previous prime is 4221122209. The next prime is 4221122237. The reversal of 4221122222 is 2222211224.

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

It is a junction number, because it is equal to n+sod(n) for n = 4221122194 and 4221122203.

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, 1055280554 + ... + 1055280557.

It is an arithmetic number, because the mean of its divisors is an integer number (1582920834).

Almost surely, 2^4221122222 is an apocalyptic number.

4221122222 is a deficient number, since it is larger than the sum of its proper divisors (2110561114).

4221122222 is a wasteful number, since it uses less digits than its factorization.

4221122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110561113.

The product of its digits is 512, while the sum is 20.

The square root of 4221122222 is about 64970.1640909118. The cubic root of 4221122222 is about 1616.1288228411.

Adding to 4221122222 its reverse (2222211224), we get a palindrome (6443333446).

The spelling of 4221122222 in words is "four billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".