1122123211 has 8 divisors (see below), whose sum is σ = 1224475200. Its totient is φ = 1019828040.

The previous prime is 1122123209. The next prime is 1122123217. The reversal of 1122123211 is 1123212211.

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

It is not a de Polignac number, because 1122123211 - 2¹ = 1122123209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122123217) 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, 34320 + ... + 58498.

It is an arithmetic number, because the mean of its divisors is an integer number (153059400).

Almost surely, 2^1122123211 is an apocalyptic number.

1122123211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122123211 is a deficient number, since it is larger than the sum of its proper divisors (102351989).

1122123211 is a wasteful number, since it uses less digits than its factorization.

1122123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28409.

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

The square root of 1122123211 is about 33498.1075734138. The cubic root of 1122123211 is about 1039.1546418754.

Adding to 1122123211 its reverse (1123212211), we get a palindrome (2245335422).

The spelling of 1122123211 in words is "one billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred eleven".