1100121212212 has 48 divisors (see below), whose sum is σ = 2161919253312. Its totient is φ = 485562055680.

The previous prime is 1100121212161. The next prime is 1100121212243. The reversal of 1100121212212 is 2122121210011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2205498 + ... + 2657905.

It is an arithmetic number, because the mean of its divisors is an integer number (45039984444).

Almost surely, 2^{1100121212212} is an apocalyptic number.

It is an amenable number.

1100121212212 is a deficient number, since it is larger than the sum of its proper divisors (1061798041100).

1100121212212 is a wasteful number, since it uses less digits than its factorization.

1100121212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863568 (or 4863566 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1100121212212 its reverse (2122121210011), we get a palindrome (3222242422223).

The spelling of 1100121212212 in words is "one trillion, one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twelve".