212220112111011 has 48 divisors (see below), whose sum is σ = 320259565348320. Its totient is φ = 135281491269120.

The previous prime is 212220112110917. The next prime is 212220112111043. The reversal of 212220112111011 is 110111211022212.

It is a happy number.

212220112111011 is a `hidden beast` number, since 212 + 220 + 1 + 1 + 211 + 10 + 11 = 666.

It is not a de Polignac number, because 212220112111011 - 2²¹ = 212220110013859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212220112118011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62251431 + ... + 65571951.

It is an arithmetic number, because the mean of its divisors is an integer number (6672074278090).

Almost surely, 2^{212220112111011} is an apocalyptic number.

212220112111011 is a deficient number, since it is larger than the sum of its proper divisors (108039453237309).

212220112111011 is a wasteful number, since it uses less digits than its factorization.

212220112111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323876 (or 3323873 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212220112111011 its reverse (110111211022212), we get a palindrome (322331323133223).

The spelling of 212220112111011 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred twelve million, one hundred eleven thousand, eleven".