1122111222 has 16 divisors (see below), whose sum is σ = 2250478080. Its totient is φ = 372994472.

The previous prime is 1122111209. The next prime is 1122111233. The reversal of 1122111222 is 2221112211.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258318 + ... + 262625.

It is an arithmetic number, because the mean of its divisors is an integer number (140654880).

Almost surely, 2^1122111222 is an apocalyptic number.

1122111222 is an abundant number, since it is smaller than the sum of its proper divisors (1128366858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122111222 is a wasteful number, since it uses less digits than its factorization.

1122111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521307.

The product of its digits is 32, while the sum is 15.

The square root of 1122111222 is about 33497.9286225283. The cubic root of 1122111222 is about 1039.1509410135.

Adding to 1122111222 its reverse (2221112211), we get a palindrome (3343223433).

The spelling of 1122111222 in words is "one billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".