1211482148121 has 12 divisors (see below), whose sum is σ = 1999907038272. Its totient is φ = 692275513176.

The previous prime is 1211482148117. The next prime is 1211482148143. The reversal of 1211482148121 is 1218412841121.

1211482148121 is a `hidden beast` number, since 1 + 2 + 11 + 482 + 1 + 48 + 121 = 666.

It is not a de Polignac number, because 1211482148121 - 2² = 1211482148117 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1211482148161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9614937621 + ... + 9614937746.

It is an arithmetic number, because the mean of its divisors is an integer number (166658919856).

Almost surely, 2^{1211482148121} is an apocalyptic number.

It is an amenable number.

1211482148121 is a deficient number, since it is larger than the sum of its proper divisors (788424890151).

1211482148121 is a wasteful number, since it uses less digits than its factorization.

1211482148121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19229875380 (or 19229875377 counting only the distinct ones).

The product of its digits is 8192, while the sum is 36.

Adding to 1211482148121 its reverse (1218412841121), we get a palindrome (2429894989242).

The spelling of 1211482148121 in words is "one trillion, two hundred eleven billion, four hundred eighty-two million, one hundred forty-eight thousand, one hundred twenty-one".