2212002121212 has 108 divisors (see below), whose sum is σ = 6410802827520. Its totient is φ = 640579769856.

The previous prime is 2212002121207. The next prime is 2212002121213. The reversal of 2212002121212 is 2121212002122.

It is a happy number.

2212002121212 is a `hidden beast` number, since 221 + 20 + 0 + 212 + 1 + 212 = 666.

It is a super-3 number, since 3×2212002121212³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212002121213) 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 35 ways as a sum of consecutive naturals, for example, 10590012 + ... + 10796867.

It is an arithmetic number, because the mean of its divisors is an integer number (59359285440).

Almost surely, 2^{2212002121212} is an apocalyptic number.

It is an amenable number.

2212002121212 is an abundant number, since it is smaller than the sum of its proper divisors (4198800706308).

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

2212002121212 is a wasteful number, since it uses less digits than its factorization.

2212002121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386932 (or 21386914 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212002121212 its reverse (2121212002122), we get a palindrome (4333214123334).

The spelling of 2212002121212 in words is "two trillion, two hundred twelve billion, two million, one hundred twenty-one thousand, two hundred twelve".