1212011111102 has 8 divisors (see below), whose sum is σ = 1983290909112. Its totient is φ = 550914141400.

The previous prime is 1212011111093. The next prime is 1212011111123. The reversal of 1212011111102 is 2011111102121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27545707049 + ... + 27545707092.

It is an arithmetic number, because the mean of its divisors is an integer number (247911363639).

Almost surely, 2^{1212011111102} is an apocalyptic number.

1212011111102 is a deficient number, since it is larger than the sum of its proper divisors (771279798010).

1212011111102 is a wasteful number, since it uses less digits than its factorization.

1212011111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55091414154.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1212011111102 its reverse (2011111102121), we get a palindrome (3223122213223).

It can be divided in two parts, 121 and 2011111102, that multiplied together give a palindrome (243344443342).

The spelling of 1212011111102 in words is "one trillion, two hundred twelve billion, eleven million, one hundred eleven thousand, one hundred two".