1122311121 has 16 divisors (see below), whose sum is σ = 1541035584. Its totient is φ = 726007104.

The previous prime is 1122311119. The next prime is 1122311131. The reversal of 1122311121 is 1211132211.

It is not a de Polignac number, because 1122311121 - 2¹ = 1122311119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122311121.

It is not an unprimeable number, because it can be changed into a prime (1122311131) 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, 27850 + ... + 54956.

It is an arithmetic number, because the mean of its divisors is an integer number (96314724).

Almost surely, 2^1122311121 is an apocalyptic number.

It is an amenable number.

1122311121 is a deficient number, since it is larger than the sum of its proper divisors (418724463).

1122311121 is a wasteful number, since it uses less digits than its factorization.

1122311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27520.

The product of its digits is 24, while the sum is 15.

The square root of 1122311121 is about 33500.9122413107. The cubic root of 1122311121 is about 1039.2126440176.

Adding to 1122311121 its reverse (1211132211), we get a palindrome (2333443332).

The spelling of 1122311121 in words is "one billion, one hundred twenty-two million, three hundred eleven thousand, one hundred twenty-one".