11212011105 has 16 divisors (see below), whose sum is σ = 18994466304. Its totient is φ = 5627989760.

The previous prime is 11212011073. The next prime is 11212011119. The reversal of 11212011105 is 50111021211.

It is not a de Polignac number, because 11212011105 - 2⁵ = 11212011073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 21984081 + ... + 21984590.

It is an arithmetic number, because the mean of its divisors is an integer number (1187154144).

Almost surely, 2^11212011105 is an apocalyptic number.

11212011105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11212011105 is a deficient number, since it is larger than the sum of its proper divisors (7782455199).

11212011105 is a wasteful number, since it uses less digits than its factorization.

11212011105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43968696.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 11212011105 its reverse (50111021211), we get a palindrome (61323032316).

The spelling of 11212011105 in words is "eleven billion, two hundred twelve million, eleven thousand, one hundred five".