1211224304011 has 4 divisors (see below), whose sum is σ = 1211282281000. Its totient is φ = 1211166327024.

The previous prime is 1211224303999. The next prime is 1211224304047. The reversal of 1211224304011 is 1104034221121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211224304011 - 2⁵ = 1211224303979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211224304611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28957146 + ... + 28998943.

It is an arithmetic number, because the mean of its divisors is an integer number (302820570250).

Almost surely, 2^{1211224304011} is an apocalyptic number.

1211224304011 is a deficient number, since it is larger than the sum of its proper divisors (57976989).

1211224304011 is an equidigital number, since it uses as much as digits as its factorization.

1211224304011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57976988.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1211224304011 its reverse (1104034221121), we get a palindrome (2315258525132).

The spelling of 1211224304011 in words is "one trillion, two hundred eleven billion, two hundred twenty-four million, three hundred four thousand, eleven".