2111421441 has 4 divisors (see below), whose sum is σ = 2815228592. Its totient is φ = 1407614292.

The previous prime is 2111421409. The next prime is 2111421443. The reversal of 2111421441 is 1441241112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2111421441 - 2⁵ = 2111421409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111421443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351903571 + ... + 351903576.

It is an arithmetic number, because the mean of its divisors is an integer number (703807148).

Almost surely, 2^2111421441 is an apocalyptic number.

It is an amenable number.

2111421441 is a deficient number, since it is larger than the sum of its proper divisors (703807151).

2111421441 is an equidigital number, since it uses as much as digits as its factorization.

2111421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703807150.

The product of its digits is 256, while the sum is 21.

The square root of 2111421441 is about 45950.2061039991. The cubic root of 2111421441 is about 1282.8965655000.

Adding to 2111421441 its reverse (1441241112), we get a palindrome (3552662553).

The spelling of 2111421441 in words is "two billion, one hundred eleven million, four hundred twenty-one thousand, four hundred forty-one".