241221140021 has 8 divisors (see below), whose sum is σ = 241968078144. Its totient is φ = 240474386880.

The previous prime is 241221140011. The next prime is 241221140023. The reversal of 241221140021 is 120041122142.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241221140021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 241221139975 and 241221140002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241221140023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2843936 + ... + 2927526.

It is an arithmetic number, because the mean of its divisors is an integer number (30246009768).

Almost surely, 2^241221140021 is an apocalyptic number.

It is an amenable number.

241221140021 is a deficient number, since it is larger than the sum of its proper divisors (746938123).

241221140021 is an equidigital number, since it uses as much as digits as its factorization.

241221140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92491.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 241221140021 its reverse (120041122142), we get a palindrome (361262262163).

The spelling of 241221140021 in words is "two hundred forty-one billion, two hundred twenty-one million, one hundred forty thousand, twenty-one".