1211330222444 has 6 divisors (see below), whose sum is σ = 2119827889284. Its totient is φ = 605665111220.

The previous prime is 1211330222441. The next prime is 1211330222483. The reversal of 1211330222444 is 4442220331121.

It is not an unprimeable number, because it can be changed into a prime (1211330222441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151416277802 + ... + 151416277809.

It is an arithmetic number, because the mean of its divisors is an integer number (353304648214).

Almost surely, 2^{1211330222444} is an apocalyptic number.

It is an amenable number.

1211330222444 is a deficient number, since it is larger than the sum of its proper divisors (908497666840).

1211330222444 is a wasteful number, since it uses less digits than its factorization.

1211330222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302832555615 (or 302832555613 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1211330222444 its reverse (4442220331121), we get a palindrome (5653550553565).

The spelling of 1211330222444 in words is "one trillion, two hundred eleven billion, three hundred thirty million, two hundred twenty-two thousand, four hundred forty-four".