1122212211 has 8 divisors (see below), whose sum is σ = 1584299664. Its totient is φ = 704133120.

The previous prime is 1122212209. The next prime is 1122212213. The reversal of 1122212211 is 1122122211.

1122212211 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1122212209) and next prime (1122212213).

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

It is not a de Polignac number, because 1122212211 - 2¹ = 1122212209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122212213) 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, 11002030 + ... + 11002131.

It is an arithmetic number, because the mean of its divisors is an integer number (198037458).

Almost surely, 2^1122212211 is an apocalyptic number.

1122212211 is a deficient number, since it is larger than the sum of its proper divisors (462087453).

1122212211 is a wasteful number, since it uses less digits than its factorization.

1122212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22004181.

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

The square root of 1122212211 is about 33499.4359803266. The cubic root of 1122212211 is about 1039.1821142947.

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

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

The spelling of 1122212211 in words is "one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".