2012121332 has 12 divisors (see below), whose sum is σ = 3792074916. Its totient is φ = 928671360.

The previous prime is 2012121323. The next prime is 2012121367. The reversal of 2012121332 is 2331212102.

It can be written as a sum of positive squares in 2 ways, for example, as 1369296016 + 642825316 = 37004^2 + 25354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2012121332.

It is a congruent number.

It is an unprimeable number.

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, 19347269 + ... + 19347372.

It is an arithmetic number, because the mean of its divisors is an integer number (316006243).

Almost surely, 2^2012121332 is an apocalyptic number.

It is an amenable number.

2012121332 is a deficient number, since it is larger than the sum of its proper divisors (1779953584).

2012121332 is a wasteful number, since it uses less digits than its factorization.

2012121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38694658 (or 38694656 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2012121332 is about 44856.6754452445. The cubic root of 2012121332 is about 1262.4612452503.

Adding to 2012121332 its reverse (2331212102), we get a palindrome (4343333434).

The spelling of 2012121332 in words is "two billion, twelve million, one hundred twenty-one thousand, three hundred thirty-two".