2421132241421 has 4 divisors (see below), whose sum is σ = 2563551785052. Its totient is φ = 2278712697792.

The previous prime is 2421132241399. The next prime is 2421132241483. The reversal of 2421132241421 is 1241422311242.

2421132241421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1465518463396 + 955613778025 = 1210586^2 + 977555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421132241421 - 2¹⁴ = 2421132225037 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 (2421132247421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71209771790 + ... + 71209771823.

It is an arithmetic number, because the mean of its divisors is an integer number (640887946263).

Almost surely, 2^{2421132241421} is an apocalyptic number.

It is an amenable number.

2421132241421 is a deficient number, since it is larger than the sum of its proper divisors (142419543631).

2421132241421 is a wasteful number, since it uses less digits than its factorization.

2421132241421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142419543630.

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

Adding to 2421132241421 its reverse (1241422311242), we get a palindrome (3662554552663).

The spelling of 2421132241421 in words is "two trillion, four hundred twenty-one billion, one hundred thirty-two million, two hundred forty-one thousand, four hundred twenty-one".