2121333671 has 8 divisors (see below), whose sum is σ = 2160076800. Its totient is φ = 2082904632.

The previous prime is 2121333667. The next prime is 2121333713. The reversal of 2121333671 is 1763331212.

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 2121333671 - 2² = 2121333667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121333371) 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, 64871 + ... + 91928.

It is an arithmetic number, because the mean of its divisors is an integer number (270009600).

Almost surely, 2^2121333671 is an apocalyptic number.

2121333671 is a deficient number, since it is larger than the sum of its proper divisors (38743129).

2121333671 is a wasteful number, since it uses less digits than its factorization.

2121333671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157045.

The product of its digits is 4536, while the sum is 29.

The square root of 2121333671 is about 46057.9381974487. The cubic root of 2121333671 is about 1284.9009842604.

Adding to 2121333671 its reverse (1763331212), we get a palindrome (3884664883).

The spelling of 2121333671 in words is "two billion, one hundred twenty-one million, three hundred thirty-three thousand, six hundred seventy-one".