111212801135 has 16 divisors (see below), whose sum is σ = 134231631840. Its totient is φ = 88452956160.

The previous prime is 111212801113. The next prime is 111212801197. The reversal of 111212801135 is 531108212111.

It is not a de Polignac number, because 111212801135 - 2⁸ = 111212800879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4815215 + ... + 4838255.

It is an arithmetic number, because the mean of its divisors is an integer number (8389476990).

Almost surely, 2^111212801135 is an apocalyptic number.

111212801135 is a deficient number, since it is larger than the sum of its proper divisors (23018830705).

111212801135 is a wasteful number, since it uses less digits than its factorization.

111212801135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28618.

The product of its (nonzero) digits is 480, while the sum is 26.

The spelling of 111212801135 in words is "one hundred eleven billion, two hundred twelve million, eight hundred one thousand, one hundred thirty-five".