4122511111 has 8 divisors (see below), whose sum is σ = 4346143920. Its totient is φ = 3899544192.

The previous prime is 4122511069. The next prime is 4122511201. The reversal of 4122511111 is 1111152214.

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

It is not a de Polignac number, because 4122511111 - 2⁷ = 4122510983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122511511) 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, 153730 + ... + 178543.

It is an arithmetic number, because the mean of its divisors is an integer number (543267990).

Almost surely, 2^4122511111 is an apocalyptic number.

4122511111 is a deficient number, since it is larger than the sum of its proper divisors (223632809).

4122511111 is a wasteful number, since it uses less digits than its factorization.

4122511111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332945.

The product of its digits is 80, while the sum is 19.

The square root of 4122511111 is about 64206.7839951512. The cubic root of 4122511111 is about 1603.4445466929. Note that the first 3 decimals are identical.

Adding to 4122511111 its reverse (1111152214), we get a palindrome (5233663325).

The spelling of 4122511111 in words is "four billion, one hundred twenty-two million, five hundred eleven thousand, one hundred eleven".