212111101122 has 8 divisors (see below), whose sum is σ = 424222202256. Its totient is φ = 70703700372.

The previous prime is 212111101121. The next prime is 212111101159. The reversal of 212111101122 is 221101111212.

It is a happy number.

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

212111101122 is an admirable number.

It is a super-2 number, since 2×212111101122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212111101121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675925088 + ... + 17675925099.

It is an arithmetic number, because the mean of its divisors is an integer number (53027775282).

Almost surely, 2^212111101122 is an apocalyptic number.

212111101122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111101122 is a wasteful number, since it uses less digits than its factorization.

212111101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35351850192.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212111101122 its reverse (221101111212), we get a palindrome (433212212334).

The spelling of 212111101122 in words is "two hundred twelve billion, one hundred eleven million, one hundred one thousand, one hundred twenty-two".