2121000211 has 8 divisors (see below), whose sum is σ = 2316639744. Its totient is φ = 1925830920.

The previous prime is 2121000197. The next prime is 2121000227. The reversal of 2121000211 is 1120001212.

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 2121000211 - 2²⁹ = 1584129299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121000251) 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 7 ways as a sum of consecutive naturals, for example, 108091 + ... + 126196.

It is an arithmetic number, because the mean of its divisors is an integer number (289579968).

Almost surely, 2^2121000211 is an apocalyptic number.

2121000211 is a deficient number, since it is larger than the sum of its proper divisors (195639533).

2121000211 is a wasteful number, since it uses less digits than its factorization.

2121000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235121.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2121000211 is about 46054.3180494511. The cubic root of 2121000211 is about 1284.8336546773.

Adding to 2121000211 its reverse (1120001212), we get a palindrome (3241001423).

The spelling of 2121000211 in words is "two billion, one hundred twenty-one million, two hundred eleven", and thus it is an aban number.