2121222033 has 16 divisors (see below), whose sum is σ = 3591487360. Its totient is φ = 1212126768.

The previous prime is 2121222031. The next prime is 2121222041. The reversal of 2121222033 is 3302221212.

It is not a de Polignac number, because 2121222033 - 2¹ = 2121222031 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2121221997 and 2121222015.

It is not an unprimeable number, because it can be changed into a prime (2121222031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5611510 + ... + 5611887.

It is an arithmetic number, because the mean of its divisors is an integer number (224467960).

Almost surely, 2^2121222033 is an apocalyptic number.

It is an amenable number.

2121222033 is a deficient number, since it is larger than the sum of its proper divisors (1470265327).

2121222033 is a wasteful number, since it uses less digits than its factorization.

2121222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11223413 (or 11223407 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2121222033 is about 46056.7262514391. The cubic root of 2121222033 is about 1284.8784439918.

Adding to 2121222033 its reverse (3302221212), we get a palindrome (5423443245).

The spelling of 2121222033 in words is "two billion, one hundred twenty-one million, two hundred twenty-two thousand, thirty-three".