241221440005531 has 16 divisors (see below), whose sum is σ = 258883460756640. Its totient is φ = 224092225416960.

The previous prime is 241221440005451. The next prime is 241221440005619. The reversal of 241221440005531 is 135500044122142.

It is a cyclic number.

It is not a de Polignac number, because 241221440005531 - 2²¹ = 241221437908379 is a prime.

It is a super-2 number, since 2×241221440005531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241221440005031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502407340 + ... + 502887241.

It is an arithmetic number, because the mean of its divisors is an integer number (16180216297290).

Almost surely, 2^{241221440005531} is an apocalyptic number.

241221440005531 is a deficient number, since it is larger than the sum of its proper divisors (17662020751109).

241221440005531 is a wasteful number, since it uses less digits than its factorization.

241221440005531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005294846.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 241221440005531 its reverse (135500044122142), we get a palindrome (376721484127673).

The spelling of 241221440005531 in words is "two hundred forty-one trillion, two hundred twenty-one billion, four hundred forty million, five thousand, five hundred thirty-one".