111011021120212 has 12 divisors (see below), whose sum is σ = 194269362996436. Its totient is φ = 55505488835520.

The previous prime is 111011021120171. The next prime is 111011021120231. The reversal of 111011021120212 is 212021120110111.

It can be written as a sum of positive squares in 2 ways, for example, as 96791832064656 + 14219189055556 = 9838284^2 + 3770834^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13065262 + ... + 19817242.

Almost surely, 2^{111011021120212} is an apocalyptic number.

It is an amenable number.

111011021120212 is a deficient number, since it is larger than the sum of its proper divisors (83258341876224).

111011021120212 is a wasteful number, since it uses less digits than its factorization.

111011021120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10862298 (or 10862296 counting only the distinct ones).

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

Adding to 111011021120212 its reverse (212021120110111), we get a palindrome (323032141230323).

The spelling of 111011021120212 in words is "one hundred eleven trillion, eleven billion, twenty-one million, one hundred twenty thousand, two hundred twelve".