2122021412 has 12 divisors (see below), whose sum is σ = 4244042880. Its totient is φ = 909437736.

The previous prime is 2122021411. The next prime is 2122021417. The reversal of 2122021412 is 2141202212.

2122021412 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2122021411) 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 3 ways as a sum of consecutive naturals, for example, 37893212 + ... + 37893267.

It is an arithmetic number, because the mean of its divisors is an integer number (353670240).

Almost surely, 2^2122021412 is an apocalyptic number.

It is an amenable number.

2122021412 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.

2122021412 is a wasteful number, since it uses less digits than its factorization.

2122021412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75786490 (or 75786488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2122021412 is about 46065.4036343979. The cubic root of 2122021412 is about 1285.0398251572.

Adding to 2122021412 its reverse (2141202212), we get a palindrome (4263223624).

The spelling of 2122021412 in words is "two billion, one hundred twenty-two million, twenty-one thousand, four hundred twelve".