2121404411 has 8 divisors (see below), whose sum is σ = 2483595744. Its totient is φ = 1773996480.

The previous prime is 2121404401. The next prime is 2121404429. The reversal of 2121404411 is 1144041212.

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 2121404411 - 2²⁶ = 2054295547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121404401) 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, 3695540 + ... + 3696113.

It is an arithmetic number, because the mean of its divisors is an integer number (310449468).

Almost surely, 2^2121404411 is an apocalyptic number.

2121404411 is a deficient number, since it is larger than the sum of its proper divisors (362191333).

2121404411 is an equidigital number, since it uses as much as digits as its factorization.

2121404411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391701.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2121404411 is about 46058.7061368424. The cubic root of 2121404411 is about 1284.9152666097.

Adding to 2121404411 its reverse (1144041212), we get a palindrome (3265445623).

The spelling of 2121404411 in words is "two billion, one hundred twenty-one million, four hundred four thousand, four hundred eleven".