1211223441308 has 144 divisors (see below), whose sum is σ = 2352018471264. Its totient is φ = 545193492480.

The previous prime is 1211223441209. The next prime is 1211223441313. The reversal of 1211223441308 is 8031443221121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 633152960 + ... + 633154872.

It is an arithmetic number, because the mean of its divisors is an integer number (16333461606).

Almost surely, 2^{1211223441308} is an apocalyptic number.

It is an amenable number.

1211223441308 is a deficient number, since it is larger than the sum of its proper divisors (1140795029956).

1211223441308 is a wasteful number, since it uses less digits than its factorization.

1211223441308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 1211223441308 its reverse (8031443221121), we get a palindrome (9242666662429).

The spelling of 1211223441308 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, four hundred forty-one thousand, three hundred eight".