111012201220999 has 16 divisors (see below), whose sum is σ = 120994486913664. Its totient is φ = 101236093164000.

The previous prime is 111012201220997. The next prime is 111012201221003. The reversal of 111012201220999 is 999022102210111.

It is a cyclic number.

It is not a de Polignac number, because 111012201220999 - 2¹ = 111012201220997 is a prime.

It is a super-3 number, since 3×111012201220999³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012201220997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52317364 + ... + 54397894.

It is an arithmetic number, because the mean of its divisors is an integer number (7562155432104).

Almost surely, 2^{111012201220999} is an apocalyptic number.

111012201220999 is a deficient number, since it is larger than the sum of its proper divisors (9982285692665).

111012201220999 is a wasteful number, since it uses less digits than its factorization.

111012201220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130078.

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 111012201220999 in words is "one hundred eleven trillion, twelve billion, two hundred one million, two hundred twenty thousand, nine hundred ninety-nine".