121111111001122 has 32 divisors (see below), whose sum is σ = 209840328941760. Its totient is φ = 51812053102080.

The previous prime is 121111111001077. The next prime is 121111111001129. The reversal of 121111111001122 is 221100111111121.

It is a junction number, because it is equal to n+sod(n) for n = 121111111001096 and 121111111001105.

It is not an unprimeable number, because it can be changed into a prime (121111111001129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168891798 + ... + 169607374.

It is an arithmetic number, because the mean of its divisors is an integer number (6557510279430).

Almost surely, 2^{121111111001122} is an apocalyptic number.

121111111001122 is a deficient number, since it is larger than the sum of its proper divisors (88729217940638).

121111111001122 is a wasteful number, since it uses less digits than its factorization.

121111111001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168146.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 121111111001122 its reverse (221100111111121), we get a palindrome (342211222112243).

The spelling of 121111111001122 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred eleven million, one thousand, one hundred twenty-two".