1100122111 has 8 divisors (see below), whose sum is σ = 1218046464. Its totient is φ = 985183320.

The previous prime is 1100122099. The next prime is 1100122117. The reversal of 1100122111 is 1112210011.

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

It is not a de Polignac number, because 1100122111 - 2⁹ = 1100121599 is a prime.

It is a super-2 number, since 2×1100122111² = 2420537318222192642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100122117) 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, 745615 + ... + 747088.

It is an arithmetic number, because the mean of its divisors is an integer number (152255808).

Almost surely, 2^1100122111 is an apocalyptic number.

1100122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100122111 is a deficient number, since it is larger than the sum of its proper divisors (117924353).

1100122111 is a wasteful number, since it uses less digits than its factorization.

1100122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492781.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1100122111 is about 33168.0887450573. The cubic root of 1100122111 is about 1032.3183118482.

Adding to 1100122111 its reverse (1112210011), we get a palindrome (2212332122).

The spelling of 1100122111 in words is "one billion, one hundred million, one hundred twenty-two thousand, one hundred eleven".