121111212113012 has 72 divisors (see below), whose sum is σ = 233468589594240. Its totient is φ = 54931375699200.

The previous prime is 121111212112999. The next prime is 121111212113033. The reversal of 121111212113012 is 210311212111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676173164 + ... + 676352252.

It is an arithmetic number, because the mean of its divisors is an integer number (3242619299920).

Almost surely, 2^{121111212113012} is an apocalyptic number.

It is an amenable number.

121111212113012 is a deficient number, since it is larger than the sum of its proper divisors (112357377481228).

121111212113012 is a wasteful number, since it uses less digits than its factorization.

121111212113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182133 (or 182120 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 121111212113012 its reverse (210311212111121), we get a palindrome (331422424224133).

The spelling of 121111212113012 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred twelve million, one hundred thirteen thousand, twelve".