212212110112 has 12 divisors (see below), whose sum is σ = 417792591846. Its totient is φ = 106106055040.

The previous prime is 212212110079. The next prime is 212212110127. The reversal of 212212110112 is 211011212212.

It can be written as a sum of positive squares in only one way, i.e., 153723589776 + 58488520336 = 392076^2 + 241844^2 .

It is a super-2 number, since 2×212212110112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3315814189 + ... + 3315814252.

Almost surely, 2^212212110112 is an apocalyptic number.

It is an amenable number.

212212110112 is a deficient number, since it is larger than the sum of its proper divisors (205580481734).

212212110112 is an equidigital number, since it uses as much as digits as its factorization.

212212110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631628451 (or 6631628443 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212212110112 its reverse (211011212212), we get a palindrome (423223322324).

The spelling of 212212110112 in words is "two hundred twelve billion, two hundred twelve million, one hundred ten thousand, one hundred twelve".