241221322502155 has 4 divisors (see below), whose sum is σ = 289465587002592. Its totient is φ = 192977058001720.

The previous prime is 241221322502143. The next prime is 241221322502227. The reversal of 241221322502155 is 551205223122142.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 241221322502155 - 2³³ = 241212732567563 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24122132250211 + ... + 24122132250220.

It is an arithmetic number, because the mean of its divisors is an integer number (72366396750648).

Almost surely, 2^{241221322502155} is an apocalyptic number.

241221322502155 is a deficient number, since it is larger than the sum of its proper divisors (48244264500437).

241221322502155 is an equidigital number, since it uses as much as digits as its factorization.

241221322502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48244264500436.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 241221322502155 its reverse (551205223122142), we get a palindrome (792426545624297).

The spelling of 241221322502155 in words is "two hundred forty-one trillion, two hundred twenty-one billion, three hundred twenty-two million, five hundred two thousand, one hundred fifty-five".