212002122112 has 64 divisors (see below), whose sum is σ = 465305374800. Its totient is φ = 95410432000.

The previous prime is 212002122109. The next prime is 212002122161. The reversal of 212002122112 is 211221200212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 603187 + ... + 887602.

Almost surely, 2^212002122112 is an apocalyptic number.

212002122112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212002122112 is an abundant number, since it is smaller than the sum of its proper divisors (253303252688).

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

212002122112 is a wasteful number, since it uses less digits than its factorization.

212002122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490915 (or 1490903 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212002122112 its reverse (211221200212), we get a palindrome (423223322324).

It can be divided in two parts, 21200212 and 2112, that multiplied together give a palindrome (44774847744).

The spelling of 212002122112 in words is "two hundred twelve billion, two million, one hundred twenty-two thousand, one hundred twelve".