241221203106021 has 12 divisors (see below), whose sum is σ = 350181534383200. Its totient is φ = 160006024169640.

The previous prime is 241221203106019. The next prime is 241221203106029. The reversal of 241221203106021 is 120601302122142.

241221203106021 is a `hidden beast` number, since 2 + 4 + 1 + 2 + 2 + 1 + 20 + 31 + 0 + 602 + 1 = 666.

It is not a de Polignac number, because 241221203106021 - 2¹ = 241221203106019 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 (241221203106029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67342600975 + ... + 67342604556.

Almost surely, 2^{241221203106021} is an apocalyptic number.

It is an amenable number.

241221203106021 is a deficient number, since it is larger than the sum of its proper divisors (108960331277179).

241221203106021 is a wasteful number, since it uses less digits than its factorization.

241221203106021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134685205736 (or 134685205733 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 241221203106021 its reverse (120601302122142), we get a palindrome (361822505228163).

The spelling of 241221203106021 in words is "two hundred forty-one trillion, two hundred twenty-one billion, two hundred three million, one hundred six thousand, twenty-one".