221241443302011 has 16 divisors (see below), whose sum is σ = 321806291114880. Its totient is φ = 134085491795520.

The previous prime is 221241443302003. The next prime is 221241443302013. The reversal of 221241443302011 is 110203344142122.

It is a happy number.

It is not a de Polignac number, because 221241443302011 - 2³ = 221241443302003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221241443302011.

It is not an unprimeable number, because it can be changed into a prime (221241443302013) 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, 14708280 + ... + 25667418.

It is an arithmetic number, because the mean of its divisors is an integer number (20112893194680).

Almost surely, 2^{221241443302011} is an apocalyptic number.

221241443302011 is a deficient number, since it is larger than the sum of its proper divisors (100564847812869).

221241443302011 is a wasteful number, since it uses less digits than its factorization.

221241443302011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11570906.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 221241443302011 its reverse (110203344142122), we get a palindrome (331444787444133).

The spelling of 221241443302011 in words is "two hundred twenty-one trillion, two hundred forty-one billion, four hundred forty-three million, three hundred two thousand, eleven".