1122221123 has 16 divisors (see below), whose sum is σ = 1163256960. Its totient is φ = 1082068416.

The previous prime is 1122221077. The next prime is 1122221143. The reversal of 1122221123 is 3211222211.

It is a cyclic number.

It is not a de Polignac number, because 1122221123 - 2⁸ = 1122220867 is a prime.

It is a super-2 number, since 2×1122221123² = 2518760497814762258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122221143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236836 + ... + 1237742.

It is an arithmetic number, because the mean of its divisors is an integer number (72703560).

Almost surely, 2^1122221123 is an apocalyptic number.

1122221123 is a deficient number, since it is larger than the sum of its proper divisors (41035837).

1122221123 is an equidigital number, since it uses as much as digits as its factorization.

1122221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346.

The product of its digits is 96, while the sum is 17.

The square root of 1122221123 is about 33499.5689972274. The cubic root of 1122221123 is about 1039.1848651608.

Adding to 1122221123 its reverse (3211222211), we get a palindrome (4333443334).

The spelling of 1122221123 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".