1122711211 has 4 divisors (see below), whose sum is σ = 1123745152. Its totient is φ = 1121677272.

The previous prime is 1122711181. The next prime is 1122711269. The reversal of 1122711211 is 1121172211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122711211 - 2¹⁷ = 1122580139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122715211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515340 + ... + 517513.

It is an arithmetic number, because the mean of its divisors is an integer number (280936288).

Almost surely, 2^1122711211 is an apocalyptic number.

1122711211 is a deficient number, since it is larger than the sum of its proper divisors (1033941).

1122711211 is a wasteful number, since it uses less digits than its factorization.

1122711211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033940.

The product of its digits is 56, while the sum is 19.

The square root of 1122711211 is about 33506.8830391608. The cubic root of 1122711211 is about 1039.3361181542.

Adding to 1122711211 its reverse (1121172211), we get a palindrome (2243883422).

The spelling of 1122711211 in words is "one billion, one hundred twenty-two million, seven hundred eleven thousand, two hundred eleven".