111212110122211 has 8 divisors (see below), whose sum is σ = 130055358017024. Its totient is φ = 93107813125320.

The previous prime is 111212110122199. The next prime is 111212110122221. The reversal of 111212110122211 is 112221011212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111212110122211 - 2¹³ = 111212110114019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212110122221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184737724155 + ... + 184737724756.

It is an arithmetic number, because the mean of its divisors is an integer number (16256919752128).

Almost surely, 2^{111212110122211} is an apocalyptic number.

111212110122211 is a deficient number, since it is larger than the sum of its proper divisors (18843247894813).

111212110122211 is an equidigital number, since it uses as much as digits as its factorization.

111212110122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369475448961.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111212110122211 its reverse (112221011212111), we get a palindrome (223433121334322).

The spelling of 111212110122211 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred ten million, one hundred twenty-two thousand, two hundred eleven".