2121662232 has 96 divisors (see below), whose sum is σ = 6014062080. Its totient is φ = 674435520.

The previous prime is 2121662201. The next prime is 2121662261. The reversal of 2121662232 is 2322661212.

It is a happy number.

2121662232 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 6 + 622 + 32 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2121662196 and 2121662205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606007 + ... + 609497.

It is an arithmetic number, because the mean of its divisors is an integer number (62646480).

Almost surely, 2^2121662232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121662232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007031040).

2121662232 is an abundant number, since it is smaller than the sum of its proper divisors (3892399848).

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

2121662232 is a wasteful number, since it uses less digits than its factorization.

2121662232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893 (or 3886 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2121662232 is about 46061.5048820596. The cubic root of 2121662232 is about 1284.9673177757.

The spelling of 2121662232 in words is "two billion, one hundred twenty-one million, six hundred sixty-two thousand, two hundred thirty-two".