111212000102111 has 16 divisors (see below), whose sum is σ = 117929902203360. Its totient is φ = 104580694264320.

The previous prime is 111212000102101. The next prime is 111212000102123. The reversal of 111212000102111 is 111201000212111.

It is a cyclic number.

It is not a de Polignac number, because 111212000102111 - 2¹⁰ = 111212000101087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212000102101) 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, 28510601 + ... + 32175741.

It is an arithmetic number, because the mean of its divisors is an integer number (7370618887710).

Almost surely, 2^{111212000102111} is an apocalyptic number.

111212000102111 is a deficient number, since it is larger than the sum of its proper divisors (6717902101249).

111212000102111 is a wasteful number, since it uses less digits than its factorization.

111212000102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676954.

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

Adding to 111212000102111 its reverse (111201000212111), we get a palindrome (222413000314222).

The spelling of 111212000102111 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred two thousand, one hundred eleven".