111212220002211 has 16 divisors (see below), whose sum is σ = 164759218905120. Its totient is φ = 74141311495680.

The previous prime is 111212220002209. The next prime is 111212220002237. The reversal of 111212220002211 is 112200022212111.

111212220002211 is a `hidden beast` number, since 1 + 11 + 212 + 220 + 0 + 0 + 221 + 1 = 666.

It is not a de Polignac number, because 111212220002211 - 2¹ = 111212220002209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111212220002011) 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, 8048511 + ... + 16947063.

It is an arithmetic number, because the mean of its divisors is an integer number (10297451181570).

Almost surely, 2^{111212220002211} is an apocalyptic number.

111212220002211 is a deficient number, since it is larger than the sum of its proper divisors (53546998902909).

111212220002211 is an equidigital number, since it uses as much as digits as its factorization.

111212220002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361443 (or 9361437 counting only the distinct ones).

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

Adding to 111212220002211 its reverse (112200022212111), we get a palindrome (223412242214322).

The spelling of 111212220002211 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twenty million, two thousand, two hundred eleven".