111220222001121 has 32 divisors (see below), whose sum is σ = 166077433251840. Its totient is φ = 73560865910400.

The previous prime is 111220222001111. The next prime is 111220222001159. The reversal of 111220222001121 is 121100222022111.

111220222001121 is a `hidden beast` number, since 111 + 220 + 2 + 220 + 0 + 112 + 1 = 666.

It is not a de Polignac number, because 111220222001121 - 2⁹ = 111220222000609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111220222001094 and 111220222001103.

It is not an unprimeable number, because it can be changed into a prime (111220222001111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26986420 + ... + 30833541.

It is an arithmetic number, because the mean of its divisors is an integer number (5189919789120).

Almost surely, 2^{111220222001121} is an apocalyptic number.

It is an amenable number.

111220222001121 is a deficient number, since it is larger than the sum of its proper divisors (54857211250719).

111220222001121 is a wasteful number, since it uses less digits than its factorization.

111220222001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57820534 (or 57820528 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111220222001121 its reverse (121100222022111), we get a palindrome (232320444023232).

The spelling of 111220222001121 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty-two million, one thousand, one hundred twenty-one".