1123222222 has 8 divisors (see below), whose sum is σ = 1694572776. Its totient is φ = 558364632.

The previous prime is 1123222211. The next prime is 1123222223. The reversal of 1123222222 is 2222223211.

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

1123222222 is a modest number, since divided by 22222 gives 11232 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1123222222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123222223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622808 + ... + 1623499.

It is an arithmetic number, because the mean of its divisors is an integer number (211821597).

Almost surely, 2^1123222222 is an apocalyptic number.

1123222222 is a deficient number, since it is larger than the sum of its proper divisors (571350554).

1123222222 is a wasteful number, since it uses less digits than its factorization.

1123222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246482.

The product of its digits is 384, while the sum is 19.

The square root of 1123222222 is about 33514.5076347542. The cubic root of 1123222222 is about 1039.4937816222.

Adding to 1123222222 its reverse (2222223211), we get a palindrome (3345445433).

The spelling of 1123222222 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred twenty-two".