1122122211 has 8 divisors (see below), whose sum is σ = 1709900544. Its totient is φ = 641212680.

The previous prime is 1122122207. The next prime is 1122122263. The reversal of 1122122211 is 1122212211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1122122211 - 2² = 1122122207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122122011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26717175 + ... + 26717216.

It is an arithmetic number, because the mean of its divisors is an integer number (213737568).

Almost surely, 2^1122122211 is an apocalyptic number.

1122122211 is a deficient number, since it is larger than the sum of its proper divisors (587778333).

1122122211 is an equidigital number, since it uses as much as digits as its factorization.

1122122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53434401.

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

The square root of 1122122211 is about 33498.0926471941. The cubic root of 1122122211 is about 1039.1543331883.

Adding to 1122122211 its reverse (1122212211), we get a palindrome (2244334422).

Subtracting 1122122211 from its reverse (1122212211), we obtain a square (90000 = 300²).

The spelling of 1122122211 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred eleven".