2121123332 has 12 divisors (see below), whose sum is σ = 3762815196. Its totient is φ = 1046033280.

The previous prime is 2121123299. The next prime is 2121123341. The reversal of 2121123332 is 2333211212.

It can be written as a sum of positive squares in 2 ways, for example, as 662341696 + 1458781636 = 25736^2 + 38194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631769 + ... + 3632352.

It is an arithmetic number, because the mean of its divisors is an integer number (313567933).

Almost surely, 2^2121123332 is an apocalyptic number.

It is an amenable number.

2121123332 is a deficient number, since it is larger than the sum of its proper divisors (1641691864).

2121123332 is a wasteful number, since it uses less digits than its factorization.

2121123332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264198 (or 7264196 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2121123332 is about 46055.6547233887. The cubic root of 2121123332 is about 1284.8585151092.

Adding to 2121123332 its reverse (2333211212), we get a palindrome (4454334544).

The spelling of 2121123332 in words is "two billion, one hundred twenty-one million, one hundred twenty-three thousand, three hundred thirty-two".