2251121333 has 8 divisors (see below), whose sum is σ = 2258054400. Its totient is φ = 2244198528.

The previous prime is 2251121309. The next prime is 2251121371. The reversal of 2251121333 is 3331211522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251121333 - 2⁸ = 2251121077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251121299 and 2251121308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251121303) 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, 708773 + ... + 711941.

It is an arithmetic number, because the mean of its divisors is an integer number (282256800).

Almost surely, 2^2251121333 is an apocalyptic number.

It is an amenable number.

2251121333 is a deficient number, since it is larger than the sum of its proper divisors (6933067).

2251121333 is a wasteful number, since it uses less digits than its factorization.

2251121333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131.

The product of its digits is 1080, while the sum is 23.

The square root of 2251121333 is about 47445.9833178742. The cubic root of 2251121333 is about 1310.5883441973.

Adding to 2251121333 its reverse (3331211522), we get a palindrome (5582332855).

The spelling of 2251121333 in words is "two billion, two hundred fifty-one million, one hundred twenty-one thousand, three hundred thirty-three".