111102120021211 has 16 divisors (see below), whose sum is σ = 121575429313920. Its totient is φ = 100691446489920.

The previous prime is 111102120021197. The next prime is 111102120021251. The reversal of 111102120021211 is 112120021201111.

It is not a de Polignac number, because 111102120021211 - 2³⁷ = 110964681067739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111102120021251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6299170 + ... + 16182823.

It is an arithmetic number, because the mean of its divisors is an integer number (7598464332120).

Almost surely, 2^{111102120021211} is an apocalyptic number.

111102120021211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111102120021211 is a deficient number, since it is larger than the sum of its proper divisors (10473309292709).

111102120021211 is a wasteful number, since it uses less digits than its factorization.

111102120021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22483386.

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

Adding to 111102120021211 its reverse (112120021201111), we get a palindrome (223222141222322).

The spelling of 111102120021211 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, two hundred eleven".