111222212020011 has 12 divisors (see below), whose sum is σ = 160675509240792. Its totient is φ = 74138355351456.

The previous prime is 111222212020009. The next prime is 111222212020033. The reversal of 111222212020011 is 110020212222111.

111222212020011 is a `hidden beast` number, since 1 + 112 + 222 + 120 + 200 + 11 = 666.

It is not a de Polignac number, because 111222212020011 - 2¹ = 111222212020009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111222212020061) 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 11 ways as a sum of consecutive naturals, for example, 815427621 + ... + 815564006.

It is an arithmetic number, because the mean of its divisors is an integer number (13389625770066).

Almost surely, 2^{111222212020011} is an apocalyptic number.

111222212020011 is a deficient number, since it is larger than the sum of its proper divisors (49453297220781).

111222212020011 is a wasteful number, since it uses less digits than its factorization.

111222212020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630999210 (or 1630999207 counting only the distinct ones).

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

Adding to 111222212020011 its reverse (110020212222111), we get a palindrome (221242424242122).

The spelling of 111222212020011 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred twelve million, twenty thousand, eleven".