111121201010212 has 12 divisors (see below), whose sum is σ = 197201004610176. Its totient is φ = 54778056835880.

The previous prime is 111121201010191. The next prime is 111121201010213. The reversal of 111121201010212 is 212010102121111.

It is not an unprimeable number, because it can be changed into a prime (111121201010213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195635916988 + ... + 195635917555.

It is an arithmetic number, because the mean of its divisors is an integer number (16433417050848).

Almost surely, 2^{111121201010212} is an apocalyptic number.

It is an amenable number.

111121201010212 is a deficient number, since it is larger than the sum of its proper divisors (86079803599964).

111121201010212 is a wasteful number, since it uses less digits than its factorization.

111121201010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391271834618 (or 391271834616 counting only the distinct ones).

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

Adding to 111121201010212 its reverse (212010102121111), we get a palindrome (323131303131323).

It can be divided in two parts, 1111 and 21201010212, that multiplied together give a palindrome (23554322345532).

The spelling of 111121201010212 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, ten thousand, two hundred twelve".