1121232211 has 16 divisors (see below), whose sum is σ = 1264951296. Its totient is φ = 984600000.

The previous prime is 1121232187. The next prime is 1121232239. The reversal of 1121232211 is 1122321211.

It is a cyclic number.

It is not a de Polignac number, because 1121232211 - 2¹¹ = 1121230163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121232251) 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, 202206 + ... + 207676.

It is an arithmetic number, because the mean of its divisors is an integer number (79059456).

Almost surely, 2^1121232211 is an apocalyptic number.

1121232211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121232211 is a deficient number, since it is larger than the sum of its proper divisors (143719085).

1121232211 is a wasteful number, since it uses less digits than its factorization.

1121232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114.

The product of its digits is 48, while the sum is 16.

The square root of 1121232211 is about 33484.8056736186. The cubic root of 1121232211 is about 1038.8795289034.

Adding to 1121232211 its reverse (1122321211), we get a palindrome (2243553422).

It can be divided in two parts, 1121 and 232211, that added together give a palindrome (233332).

The spelling of 1121232211 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred eleven".