2122212012 has 48 divisors (see below), whose sum is σ = 5120231424. Its totient is φ = 683424000.

The previous prime is 2122211989. The next prime is 2122212013. The reversal of 2122212012 is 2102122212.

It is a junction number, because it is equal to n+sod(n) for n = 2122211982 and 2122212000.

It is not an unprimeable number, because it can be changed into a prime (2122212013) 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 15 ways as a sum of consecutive naturals, for example, 230212 + ... + 239252.

It is an arithmetic number, because the mean of its divisors is an integer number (106671488).

Almost surely, 2^2122212012 is an apocalyptic number.

It is an amenable number.

2122212012 is an abundant number, since it is smaller than the sum of its proper divisors (2998019412).

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

2122212012 is a wasteful number, since it uses less digits than its factorization.

2122212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9710 (or 9708 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2122212012 is about 46067.4723856215. The cubic root of 2122212012 is about 1285.0782981052.

Adding to 2122212012 its reverse (2102122212), we get a palindrome (4224334224).

The spelling of 2122212012 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, twelve".