241212421 has 4 divisors (see below), whose sum is σ = 241265952. Its totient is φ = 241158892.

The previous prime is 241212409. The next prime is 241212427. The reversal of 241212421 is 124212142.

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-241212421 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 (241212427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19315 + ... + 29248.

It is an arithmetic number, because the mean of its divisors is an integer number (60316488).

Almost surely, 2^241212421 is an apocalyptic number.

It is an amenable number.

241212421 is a deficient number, since it is larger than the sum of its proper divisors (53531).

241212421 is an equidigital number, since it uses as much as digits as its factorization.

241212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53530.

The product of its digits is 256, while the sum is 19.

The square root of 241212421 is about 15531.0148090844. The cubic root of 241212421 is about 622.4912089424.

Adding to 241212421 its reverse (124212142), we get a palindrome (365424563).

The spelling of 241212421 in words is "two hundred forty-one million, two hundred twelve thousand, four hundred twenty-one".