2121223332 has 24 divisors (see below), whose sum is σ = 4950481536. Its totient is φ = 706937248.

The previous prime is 2121223249. The next prime is 2121223337. The reversal of 2121223332 is 2333221212.

It is a happy number.

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 = 2121223299 and 2121223308.

It is not an unprimeable number, because it can be changed into a prime (2121223337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61813 + ... + 89795.

It is an arithmetic number, because the mean of its divisors is an integer number (206270064).

Almost surely, 2^2121223332 is an apocalyptic number.

It is an amenable number.

2121223332 is an abundant number, since it is smaller than the sum of its proper divisors (2829258204).

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

2121223332 is a wasteful number, since it uses less digits than its factorization.

2121223332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34307 (or 34305 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 2121223332 is about 46056.7403536117. The cubic root of 2121223332 is about 1284.8787062709.

Adding to 2121223332 its reverse (2333221212), we get a palindrome (4454444544).

It can be divided in two parts, 21212 and 23332, that added together give a palindrome (44544).

The spelling of 2121223332 in words is "two billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-two".