2421126401 has 4 divisors (see below), whose sum is σ = 2426057904. Its totient is φ = 2416194900.

The previous prime is 2421126373. The next prime is 2421126427. The reversal of 2421126401 is 1046211242.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421126401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421126101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2465015 + ... + 2465996.

It is an arithmetic number, because the mean of its divisors is an integer number (606514476).

Almost surely, 2^2421126401 is an apocalyptic number.

It is an amenable number.

2421126401 is a deficient number, since it is larger than the sum of its proper divisors (4931503).

2421126401 is an equidigital number, since it uses as much as digits as its factorization.

2421126401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931502.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2421126401 is about 49204.9428513031. The cubic root of 2421126401 is about 1342.7829592893.

Adding to 2421126401 its reverse (1046211242), we get a palindrome (3467337643).

The spelling of 2421126401 in words is "two billion, four hundred twenty-one million, one hundred twenty-six thousand, four hundred one".