111100212012209 has 16 divisors (see below), whose sum is σ = 127087568976000. Its totient is φ = 95141834146944.

The previous prime is 111100212012161. The next prime is 111100212012211. The reversal of 111100212012209 is 902210212001111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111100212012209 - 2⁸ = 111100212011953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100212012289) 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, 328192574 + ... + 328530920.

It is an arithmetic number, because the mean of its divisors is an integer number (7942973061000).

Almost surely, 2^{111100212012209} is an apocalyptic number.

It is an amenable number.

111100212012209 is a deficient number, since it is larger than the sum of its proper divisors (15987356963791).

111100212012209 is a wasteful number, since it uses less digits than its factorization.

111100212012209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381032.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 111100212012209 in words is "one hundred eleven trillion, one hundred billion, two hundred twelve million, twelve thousand, two hundred nine".