2121333332 has 12 divisors (see below), whose sum is σ = 3873739296. Its totient is φ = 1014550680.

The previous prime is 2121333329. The next prime is 2121333343. The reversal of 2121333332 is 2333331212.

It is a super-4 number, since 4×2121333332⁴ (a number of 38 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 2121333298 and 2121333307.

It is a congruent number.

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, 11528894 + ... + 11529077.

It is an arithmetic number, because the mean of its divisors is an integer number (322811608).

Almost surely, 2^2121333332 is an apocalyptic number.

It is an amenable number.

2121333332 is a deficient number, since it is larger than the sum of its proper divisors (1752405964).

2121333332 is a wasteful number, since it uses less digits than its factorization.

2121333332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23057998 (or 23057996 counting only the distinct ones).

The product of its digits is 1944, while the sum is 23.

The square root of 2121333332 is about 46057.9345173011. The cubic root of 2121333332 is about 1284.9009158158.

Adding to 2121333332 its reverse (2333331212), we get a palindrome (4454664544).

It can be divided in two parts, 21213 and 33332, that added together give a palindrome (54545).

The spelling of 2121333332 in words is "two billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty-two".