11122012011 has 32 divisors (see below), whose sum is σ = 16749398016. Its totient is φ = 6503616000.

The previous prime is 11122011973. The next prime is 11122012019. The reversal of 11122012011 is 11021022111.

It is not a de Polignac number, because 11122012011 - 2⁹ = 11122011499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11122012019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328621 + ... + 360881.

It is an arithmetic number, because the mean of its divisors is an integer number (523418688).

Almost surely, 2^11122012011 is an apocalyptic number.

11122012011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11122012011 is a deficient number, since it is larger than the sum of its proper divisors (5627386005).

11122012011 is a wasteful number, since it uses less digits than its factorization.

11122012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32643.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11122012011 its reverse (11021022111), we get a palindrome (22143034122).

The spelling of 11122012011 in words is "eleven billion, one hundred twenty-two million, twelve thousand, eleven".