11112100021122 has 16 divisors (see below), whose sum is σ = 22340557112832. Its totient is φ = 3684640495280.

The previous prime is 11112100021109. The next prime is 11112100021129. The reversal of 11112100021122 is 22112000121111.

It is a happy number.

It is a super-2 number, since 2×11112100021122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11112100021129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848210033 + ... + 4848212324.

It is an arithmetic number, because the mean of its divisors is an integer number (1396284819552).

Almost surely, 2^{11112100021122} is an apocalyptic number.

11112100021122 is an abundant number, since it is smaller than the sum of its proper divisors (11228457091710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11112100021122 is a wasteful number, since it uses less digits than its factorization.

11112100021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696422553.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112100021122 its reverse (22112000121111), we get a palindrome (33224100142233).

The spelling of 11112100021122 in words is "eleven trillion, one hundred twelve billion, one hundred million, twenty-one thousand, one hundred twenty-two".