9911012122 has 32 divisors (see below), whose sum is σ = 16614918144. Its totient is φ = 4395006000.

The previous prime is 9911012081. The next prime is 9911012129. The reversal of 9911012122 is 2212101199.

9911012122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9911012122² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9911012129) 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 15 ways as a sum of consecutive naturals, for example, 852247 + ... + 863797.

It is an arithmetic number, because the mean of its divisors is an integer number (519216192).

Almost surely, 2^9911012122 is an apocalyptic number.

9911012122 is a deficient number, since it is larger than the sum of its proper divisors (6703906022).

9911012122 is a wasteful number, since it uses less digits than its factorization.

9911012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12514.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 9911012122 is about 99554.0663257910. The cubic root of 9911012122 is about 2148.0250204574.

The spelling of 9911012122 in words is "nine billion, nine hundred eleven million, twelve thousand, one hundred twenty-two".