1122122111 has 8 divisors (see below), whose sum is σ = 1296141264. Its totient is φ = 960104320.

The previous prime is 1122122087. The next prime is 1122122117. The reversal of 1122122111 is 1112212211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122122111 - 2²² = 1117927807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122122117) 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 7 ways as a sum of consecutive naturals, for example, 3000140 + ... + 3000513.

It is an arithmetic number, because the mean of its divisors is an integer number (162017658).

Almost surely, 2^1122122111 is an apocalyptic number.

1122122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122122111 is a deficient number, since it is larger than the sum of its proper divisors (174019153).

1122122111 is a wasteful number, since it uses less digits than its factorization.

1122122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000681.

The product of its digits is 16, while the sum is 14.

The square root of 1122122111 is about 33498.0911545718. The cubic root of 1122122111 is about 1039.1543023196.

Adding to 1122122111 its reverse (1112212211), we get a palindrome (2234334322).

It can be divided in two parts, 11 and 22122111, that added together give a palindrome (22122122).

The spelling of 1122122111 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".