2121214433 has 16 divisors (see below), whose sum is σ = 2326363200. Its totient is φ = 1922157120.

The previous prime is 2121214421. The next prime is 2121214441. The reversal of 2121214433 is 3344121212.

It is not a de Polignac number, because 2121214433 - 2²⁶ = 2054105569 is a prime.

It is a super-2 number, since 2×2121214433² = 8999101341535022978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121214399 and 2121214408.

It is not an unprimeable number, because it can be changed into a prime (2121214453) 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, 720278 + ... + 723216.

It is an arithmetic number, because the mean of its divisors is an integer number (145397700).

Almost surely, 2^2121214433 is an apocalyptic number.

It is an amenable number.

2121214433 is a deficient number, since it is larger than the sum of its proper divisors (205148767).

2121214433 is a wasteful number, since it uses less digits than its factorization.

2121214433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952.

The product of its digits is 1152, while the sum is 23.

The square root of 2121214433 is about 46056.6437444154. The cubic root of 2121214433 is about 1284.8769094851.

Adding to 2121214433 its reverse (3344121212), we get a palindrome (5465335645).

The spelling of 2121214433 in words is "two billion, one hundred twenty-one million, two hundred fourteen thousand, four hundred thirty-three".