2121266333 has 16 divisors (see below), whose sum is σ = 2239612416. Its totient is φ = 2005193520.

The previous prime is 2121266327. The next prime is 2121266387. The reversal of 2121266333 is 3336621212.

It is a cyclic number.

It is not a de Polignac number, because 2121266333 - 2⁶ = 2121266269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121266296 and 2121266305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121266633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384778 + ... + 1386308.

It is an arithmetic number, because the mean of its divisors is an integer number (139975776).

Almost surely, 2^2121266333 is an apocalyptic number.

2121266333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2121266333 is a deficient number, since it is larger than the sum of its proper divisors (118346083).

2121266333 is a wasteful number, since it uses less digits than its factorization.

2121266333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its digits is 7776, while the sum is 29.

The square root of 2121266333 is about 46057.2071775960. The cubic root of 2121266333 is about 1284.8873884772.

Adding to 2121266333 its reverse (3336621212), we get a palindrome (5457887545).

The spelling of 2121266333 in words is "two billion, one hundred twenty-one million, two hundred sixty-six thousand, three hundred thirty-three".