2041121434421 has 4 divisors (see below), whose sum is σ = 2041265463372. Its totient is φ = 2040977405472.

The previous prime is 2041121434361. The next prime is 2041121434433. The reversal of 2041121434421 is 1244341211402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 982301014321 + 1058820420100 = 991111^2 + 1028990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041121434421 - 2⁶ = 2041121434357 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 (2041121434481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71993216 + ... + 72021561.

It is an arithmetic number, because the mean of its divisors is an integer number (510316365843).

Almost surely, 2^{2041121434421} is an apocalyptic number.

It is an amenable number.

2041121434421 is a deficient number, since it is larger than the sum of its proper divisors (144028951).

2041121434421 is a wasteful number, since it uses less digits than its factorization.

2041121434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144028950.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 2041121434421 its reverse (1244341211402), we get a palindrome (3285462645823).

The spelling of 2041121434421 in words is "two trillion, forty-one billion, one hundred twenty-one million, four hundred thirty-four thousand, four hundred twenty-one".