11121212001148 has 48 divisors (see below), whose sum is σ = 21161224443744. Its totient is φ = 5093610117120.

The previous prime is 11121212001143. The next prime is 11121212001149. The reversal of 11121212001148 is 84110021212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121212001143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5946015 + ... + 7589302.

It is an arithmetic number, because the mean of its divisors is an integer number (440858842578).

Almost surely, 2^{11121212001148} is an apocalyptic number.

It is an amenable number.

11121212001148 is a deficient number, since it is larger than the sum of its proper divisors (10040012442596).

11121212001148 is a wasteful number, since it uses less digits than its factorization.

11121212001148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535662 (or 13535660 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 25.

Adding to 11121212001148 its reverse (84110021212111), we get a palindrome (95231233213259).

The spelling of 11121212001148 in words is "eleven trillion, one hundred twenty-one billion, two hundred twelve million, one thousand, one hundred forty-eight".